Home / 20,624.72-28,462.12-11,193.28

Finding the Fourth Proportional to 20,624.72, 28,462.12 and 11,193.28

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Solution

The fourth proportional to 20,624.72, 28,462.12 and 11,193.28 is: 15,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.72 : 28,462.12 = 11,193.28 : x
  2. Step 2: Convert to fraction form
    20,624.72/28,462.12 = 11,193.28/x
  3. Step 3: Cross multiply
    20,624.72x = 28,462.12 × 11,193.28
  4. Step 4: Simplify right side
    20,624.72x = 318,584,478.55
  5. Step 5: Solve for x
    x = 318,584,478.55/20,624.72
  6. Step 6: Final answer
    x = 15,446.73

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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.