Home / 38,122.24-52,608.64-21,355.20

Finding the Fourth Proportional to 38,122.24, 52,608.64 and 21,355.20

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Solution

The fourth proportional to 38,122.24, 52,608.64 and 21,355.20 is: 29,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.24 : 52,608.64 = 21,355.20 : x
  2. Step 2: Convert to fraction form
    38,122.24/52,608.64 = 21,355.20/x
  3. Step 3: Cross multiply
    38,122.24x = 52,608.64 × 21,355.20
  4. Step 4: Simplify right side
    38,122.24x = 1,123,468,028.93
  5. Step 5: Solve for x
    x = 1,123,468,028.93/38,122.24
  6. Step 6: Final answer
    x = 29,470.15

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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.