Home / 20,654.71-28,502.58-11,702.04

Finding the Fourth Proportional to 20,654.71, 28,502.58 and 11,702.04

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Solution

The fourth proportional to 20,654.71, 28,502.58 and 11,702.04 is: 16,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.71 : 28,502.58 = 11,702.04 : x
  2. Step 2: Convert to fraction form
    20,654.71/28,502.58 = 11,702.04/x
  3. Step 3: Cross multiply
    20,654.71x = 28,502.58 × 11,702.04
  4. Step 4: Simplify right side
    20,654.71x = 333,538,268.26
  5. Step 5: Solve for x
    x = 333,538,268.26/20,654.71
  6. Step 6: Final answer
    x = 16,148.29

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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.