Home / 28,089.16-38,766.14-17,331.88

Finding the Fourth Proportional to 28,089.16, 38,766.14 and 17,331.88

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Solution

The fourth proportional to 28,089.16, 38,766.14 and 17,331.88 is: 23,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.16 : 38,766.14 = 17,331.88 : x
  2. Step 2: Convert to fraction form
    28,089.16/38,766.14 = 17,331.88/x
  3. Step 3: Cross multiply
    28,089.16x = 38,766.14 × 17,331.88
  4. Step 4: Simplify right side
    28,089.16x = 671,890,086.54
  5. Step 5: Solve for x
    x = 671,890,086.54/28,089.16
  6. Step 6: Final answer
    x = 23,919.91

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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.