Home / 20,517.23-28,242.65-17,693.97

Finding the Fourth Proportional to 20,517.23, 28,242.65 and 17,693.97

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Solution

The fourth proportional to 20,517.23, 28,242.65 and 17,693.97 is: 24,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.23 : 28,242.65 = 17,693.97 : x
  2. Step 2: Convert to fraction form
    20,517.23/28,242.65 = 17,693.97/x
  3. Step 3: Cross multiply
    20,517.23x = 28,242.65 × 17,693.97
  4. Step 4: Simplify right side
    20,517.23x = 499,724,513.35
  5. Step 5: Solve for x
    x = 499,724,513.35/20,517.23
  6. Step 6: Final answer
    x = 24,356.34

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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.