Home / 20,624.90-28,462.19-11,193.46

Finding the Fourth Proportional to 20,624.90, 28,462.19 and 11,193.46

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Solution

The fourth proportional to 20,624.90, 28,462.19 and 11,193.46 is: 15,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.90 : 28,462.19 = 11,193.46 : x
  2. Step 2: Convert to fraction form
    20,624.90/28,462.19 = 11,193.46/x
  3. Step 3: Cross multiply
    20,624.90x = 28,462.19 × 11,193.46
  4. Step 4: Simplify right side
    20,624.90x = 318,590,385.28
  5. Step 5: Solve for x
    x = 318,590,385.28/20,624.90
  6. Step 6: Final answer
    x = 15,446.88

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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.