Home / 38,120.72-52,608.84-21,356.24

Finding the Fourth Proportional to 38,120.72, 52,608.84 and 21,356.24

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Solution

The fourth proportional to 38,120.72, 52,608.84 and 21,356.24 is: 29,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.72 : 52,608.84 = 21,356.24 : x
  2. Step 2: Convert to fraction form
    38,120.72/52,608.84 = 21,356.24/x
  3. Step 3: Cross multiply
    38,120.72x = 52,608.84 × 21,356.24
  4. Step 4: Simplify right side
    38,120.72x = 1,123,527,013.16
  5. Step 5: Solve for x
    x = 1,123,527,013.16/38,120.72
  6. Step 6: Final answer
    x = 29,472.87

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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.