Home / 38,213.10-52,737.39-21,220.61

Finding the Fourth Proportional to 38,213.10, 52,737.39 and 21,220.61

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Solution

The fourth proportional to 38,213.10, 52,737.39 and 21,220.61 is: 29,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,213.10 : 52,737.39 = 21,220.61 : x
  2. Step 2: Convert to fraction form
    38,213.10/52,737.39 = 21,220.61/x
  3. Step 3: Cross multiply
    38,213.10x = 52,737.39 × 21,220.61
  4. Step 4: Simplify right side
    38,213.10x = 1,119,119,321.92
  5. Step 5: Solve for x
    x = 1,119,119,321.92/38,213.10
  6. Step 6: Final answer
    x = 29,286.27

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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.