Home / 38,440.71-53,049.11-21,444.83

Finding the Fourth Proportional to 38,440.71, 53,049.11 and 21,444.83

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Solution

The fourth proportional to 38,440.71, 53,049.11 and 21,444.83 is: 29,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.71 : 53,049.11 = 21,444.83 : x
  2. Step 2: Convert to fraction form
    38,440.71/53,049.11 = 21,444.83/x
  3. Step 3: Cross multiply
    38,440.71x = 53,049.11 × 21,444.83
  4. Step 4: Simplify right side
    38,440.71x = 1,137,629,145.60
  5. Step 5: Solve for x
    x = 1,137,629,145.60/38,440.71
  6. Step 6: Final answer
    x = 29,594.38

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Half scale
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Double scale
Find fourth proportional to 38,441.71, 53,050.49 and 21,445.83
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.