Home / 20,487.60-28,213.38-17,797.56

Finding the Fourth Proportional to 20,487.60, 28,213.38 and 17,797.56

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Solution

The fourth proportional to 20,487.60, 28,213.38 and 17,797.56 is: 24,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.60 : 28,213.38 = 17,797.56 : x
  2. Step 2: Convert to fraction form
    20,487.60/28,213.38 = 17,797.56/x
  3. Step 3: Cross multiply
    20,487.60x = 28,213.38 × 17,797.56
  4. Step 4: Simplify right side
    20,487.60x = 502,129,323.35
  5. Step 5: Solve for x
    x = 502,129,323.35/20,487.60
  6. Step 6: Final answer
    x = 24,508.94

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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.