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Finding the Fourth Proportional to 28,659, 39,549.48 and 16,084.08

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Solution

The fourth proportional to 28,659, 39,549.48 and 16,084.08 is: 22,196.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659 : 39,549.48 = 16,084.08 : x
  2. Step 2: Convert to fraction form
    28,659/39,549.48 = 16,084.08/x
  3. Step 3: Cross multiply
    28,659x = 39,549.48 × 16,084.08
  4. Step 4: Simplify right side
    28,659x = 636,117,000.28
  5. Step 5: Solve for x
    x = 636,117,000.28/28,659
  6. Step 6: Final answer
    x = 22,196.06

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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.