Home / 38,121.32-52,607.42-21,354.28

Finding the Fourth Proportional to 38,121.32, 52,607.42 and 21,354.28

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Solution

The fourth proportional to 38,121.32, 52,607.42 and 21,354.28 is: 29,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.32 : 52,607.42 = 21,354.28 : x
  2. Step 2: Convert to fraction form
    38,121.32/52,607.42 = 21,354.28/x
  3. Step 3: Cross multiply
    38,121.32x = 52,607.42 × 21,354.28
  4. Step 4: Simplify right side
    38,121.32x = 1,123,393,576.76
  5. Step 5: Solve for x
    x = 1,123,393,576.76/38,121.32
  6. Step 6: Final answer
    x = 29,468.91

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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.