Home / 20,494.68-28,283.20-11,542.52

Finding the Fourth Proportional to 20,494.68, 28,283.20 and 11,542.52

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Solution

The fourth proportional to 20,494.68, 28,283.20 and 11,542.52 is: 15,928.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.68 : 28,283.20 = 11,542.52 : x
  2. Step 2: Convert to fraction form
    20,494.68/28,283.20 = 11,542.52/x
  3. Step 3: Cross multiply
    20,494.68x = 28,283.20 × 11,542.52
  4. Step 4: Simplify right side
    20,494.68x = 326,459,401.66
  5. Step 5: Solve for x
    x = 326,459,401.66/20,494.68
  6. Step 6: Final answer
    x = 15,928.98

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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.