Home / 20,040.48-30,060.72-11,281.68

Finding the Fourth Proportional to 20,040.48, 30,060.72 and 11,281.68

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Solution

The fourth proportional to 20,040.48, 30,060.72 and 11,281.68 is: 16,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.48 : 30,060.72 = 11,281.68 : x
  2. Step 2: Convert to fraction form
    20,040.48/30,060.72 = 11,281.68/x
  3. Step 3: Cross multiply
    20,040.48x = 30,060.72 × 11,281.68
  4. Step 4: Simplify right side
    20,040.48x = 339,135,423.61
  5. Step 5: Solve for x
    x = 339,135,423.61/20,040.48
  6. Step 6: Final answer
    x = 16,922.52

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.