Home / 31,257.08-43,135.79-17,109.92

Finding the Fourth Proportional to 31,257.08, 43,135.79 and 17,109.92

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Solution

The fourth proportional to 31,257.08, 43,135.79 and 17,109.92 is: 23,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.08 : 43,135.79 = 17,109.92 : x
  2. Step 2: Convert to fraction form
    31,257.08/43,135.79 = 17,109.92/x
  3. Step 3: Cross multiply
    31,257.08x = 43,135.79 × 17,109.92
  4. Step 4: Simplify right side
    31,257.08x = 738,049,743.13
  5. Step 5: Solve for x
    x = 738,049,743.13/31,257.08
  6. Step 6: Final answer
    x = 23,612.25

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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.