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Finding the Fourth Proportional to 38,151.88, 57,154.01 and 21,461.20

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Solution

The fourth proportional to 38,151.88, 57,154.01 and 21,461.20 is: 32,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,151.88 : 57,154.01 = 21,461.20 : x
  2. Step 2: Convert to fraction form
    38,151.88/57,154.01 = 21,461.20/x
  3. Step 3: Cross multiply
    38,151.88x = 57,154.01 × 21,461.20
  4. Step 4: Simplify right side
    38,151.88x = 1,226,593,639.41
  5. Step 5: Solve for x
    x = 1,226,593,639.41/38,151.88
  6. Step 6: Final answer
    x = 32,150.28

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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.