Home / 28,000.08-38,641.86-15,424.83

Finding the Fourth Proportional to 28,000.08, 38,641.86 and 15,424.83

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Solution

The fourth proportional to 28,000.08, 38,641.86 and 15,424.83 is: 21,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.08 : 38,641.86 = 15,424.83 : x
  2. Step 2: Convert to fraction form
    28,000.08/38,641.86 = 15,424.83/x
  3. Step 3: Cross multiply
    28,000.08x = 38,641.86 × 15,424.83
  4. Step 4: Simplify right side
    28,000.08x = 596,044,121.38
  5. Step 5: Solve for x
    x = 596,044,121.38/28,000.08
  6. Step 6: Final answer
    x = 21,287.23

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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.