Home / 20,654.64-28,503.31-11,702.13

Finding the Fourth Proportional to 20,654.64, 28,503.31 and 11,702.13

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Solution

The fourth proportional to 20,654.64, 28,503.31 and 11,702.13 is: 16,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.64 : 28,503.31 = 11,702.13 : x
  2. Step 2: Convert to fraction form
    20,654.64/28,503.31 = 11,702.13/x
  3. Step 3: Cross multiply
    20,654.64x = 28,503.31 × 11,702.13
  4. Step 4: Simplify right side
    20,654.64x = 333,549,302.91
  5. Step 5: Solve for x
    x = 333,549,302.91/20,654.64
  6. Step 6: Final answer
    x = 16,148.88

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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.