Home / 28,830.98-39,785.28-16,081.88

Finding the Fourth Proportional to 28,830.98, 39,785.28 and 16,081.88

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Solution

The fourth proportional to 28,830.98, 39,785.28 and 16,081.88 is: 22,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.98 : 39,785.28 = 16,081.88 : x
  2. Step 2: Convert to fraction form
    28,830.98/39,785.28 = 16,081.88/x
  3. Step 3: Cross multiply
    28,830.98x = 39,785.28 × 16,081.88
  4. Step 4: Simplify right side
    28,830.98x = 639,822,098.73
  5. Step 5: Solve for x
    x = 639,822,098.73/28,830.98
  6. Step 6: Final answer
    x = 22,192.17

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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.