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Finding the Fourth Proportional to 38,561.60, 57,842.40 and 23,787.20

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Solution

The fourth proportional to 38,561.60, 57,842.40 and 23,787.20 is: 35,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561.60 : 57,842.40 = 23,787.20 : x
  2. Step 2: Convert to fraction form
    38,561.60/57,842.40 = 23,787.20/x
  3. Step 3: Cross multiply
    38,561.60x = 57,842.40 × 23,787.20
  4. Step 4: Simplify right side
    38,561.60x = 1,375,908,737.28
  5. Step 5: Solve for x
    x = 1,375,908,737.28/38,561.60
  6. Step 6: Final answer
    x = 35,680.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.