Home / 31,388.54-43,344.30-23,416.92

Finding the Fourth Proportional to 31,388.54, 43,344.30 and 23,416.92

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Solution

The fourth proportional to 31,388.54, 43,344.30 and 23,416.92 is: 32,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.54 : 43,344.30 = 23,416.92 : x
  2. Step 2: Convert to fraction form
    31,388.54/43,344.30 = 23,416.92/x
  3. Step 3: Cross multiply
    31,388.54x = 43,344.30 × 23,416.92
  4. Step 4: Simplify right side
    31,388.54x = 1,014,990,005.56
  5. Step 5: Solve for x
    x = 1,014,990,005.56/31,388.54
  6. Step 6: Final answer
    x = 32,336.32

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Half scale
Find fourth proportional to 62,777.08, 86,688.60 and 46,833.84
Double scale
Find fourth proportional to 31,389.54, 43,345.68 and 23,417.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.