Home / 20,693.28-28,562.74-13,524.27

Finding the Fourth Proportional to 20,693.28, 28,562.74 and 13,524.27

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Solution

The fourth proportional to 20,693.28, 28,562.74 and 13,524.27 is: 18,667.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.28 : 28,562.74 = 13,524.27 : x
  2. Step 2: Convert to fraction form
    20,693.28/28,562.74 = 13,524.27/x
  3. Step 3: Cross multiply
    20,693.28x = 28,562.74 × 13,524.27
  4. Step 4: Simplify right side
    20,693.28x = 386,290,207.70
  5. Step 5: Solve for x
    x = 386,290,207.70/20,693.28
  6. Step 6: Final answer
    x = 18,667.43

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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.