Home / 38,210.85-52,737.28-21,220.53

Finding the Fourth Proportional to 38,210.85, 52,737.28 and 21,220.53

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Solution

The fourth proportional to 38,210.85, 52,737.28 and 21,220.53 is: 29,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,210.85 : 52,737.28 = 21,220.53 : x
  2. Step 2: Convert to fraction form
    38,210.85/52,737.28 = 21,220.53/x
  3. Step 3: Cross multiply
    38,210.85x = 52,737.28 × 21,220.53
  4. Step 4: Simplify right side
    38,210.85x = 1,119,112,781.54
  5. Step 5: Solve for x
    x = 1,119,112,781.54/38,210.85
  6. Step 6: Final answer
    x = 29,287.83

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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.