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Finding the Fourth Proportional to 38,369.60, 57,532.56 and 18,642.88

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Solution

The fourth proportional to 38,369.60, 57,532.56 and 18,642.88 is: 27,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,369.60 : 57,532.56 = 18,642.88 : x
  2. Step 2: Convert to fraction form
    38,369.60/57,532.56 = 18,642.88/x
  3. Step 3: Cross multiply
    38,369.60x = 57,532.56 × 18,642.88
  4. Step 4: Simplify right side
    38,369.60x = 1,072,572,612.17
  5. Step 5: Solve for x
    x = 1,072,572,612.17/38,369.60
  6. Step 6: Final answer
    x = 27,953.71

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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.