Home / 38,210.91-52,737.35-21,220.65

Finding the Fourth Proportional to 38,210.91, 52,737.35 and 21,220.65

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Solution

The fourth proportional to 38,210.91, 52,737.35 and 21,220.65 is: 29,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,210.91 : 52,737.35 = 21,220.65 : x
  2. Step 2: Convert to fraction form
    38,210.91/52,737.35 = 21,220.65/x
  3. Step 3: Cross multiply
    38,210.91x = 52,737.35 × 21,220.65
  4. Step 4: Simplify right side
    38,210.91x = 1,119,120,740.17
  5. Step 5: Solve for x
    x = 1,119,120,740.17/38,210.91
  6. Step 6: Final answer
    x = 29,287.99

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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.