Home / 28,162.38-38,872.74-16,233.69

Finding the Fourth Proportional to 28,162.38, 38,872.74 and 16,233.69

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Solution

The fourth proportional to 28,162.38, 38,872.74 and 16,233.69 is: 22,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.38 : 38,872.74 = 16,233.69 : x
  2. Step 2: Convert to fraction form
    28,162.38/38,872.74 = 16,233.69/x
  3. Step 3: Cross multiply
    28,162.38x = 38,872.74 × 16,233.69
  4. Step 4: Simplify right side
    28,162.38x = 631,048,010.61
  5. Step 5: Solve for x
    x = 631,048,010.61/28,162.38
  6. Step 6: Final answer
    x = 22,407.48

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Half scale
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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.