Home / 20,607.90-28,439.42-11,654.97

Finding the Fourth Proportional to 20,607.90, 28,439.42 and 11,654.97

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Solution

The fourth proportional to 20,607.90, 28,439.42 and 11,654.97 is: 16,084.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.90 : 28,439.42 = 11,654.97 : x
  2. Step 2: Convert to fraction form
    20,607.90/28,439.42 = 11,654.97/x
  3. Step 3: Cross multiply
    20,607.90x = 28,439.42 × 11,654.97
  4. Step 4: Simplify right side
    20,607.90x = 331,460,528.64
  5. Step 5: Solve for x
    x = 331,460,528.64/20,607.90
  6. Step 6: Final answer
    x = 16,084.15

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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.