Home / 38,517.92-53,154.80-21,522.20

Finding the Fourth Proportional to 38,517.92, 53,154.80 and 21,522.20

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Solution

The fourth proportional to 38,517.92, 53,154.80 and 21,522.20 is: 29,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,517.92 : 53,154.80 = 21,522.20 : x
  2. Step 2: Convert to fraction form
    38,517.92/53,154.80 = 21,522.20/x
  3. Step 3: Cross multiply
    38,517.92x = 53,154.80 × 21,522.20
  4. Step 4: Simplify right side
    38,517.92x = 1,144,008,236.56
  5. Step 5: Solve for x
    x = 1,144,008,236.56/38,517.92
  6. Step 6: Final answer
    x = 29,700.68

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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.