Home / 22,010.40-32,979.15-18,729.90

Finding the Fourth Proportional to 22,010.40, 32,979.15 and 18,729.90

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Solution

The fourth proportional to 22,010.40, 32,979.15 and 18,729.90 is: 28,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,010.40 : 32,979.15 = 18,729.90 : x
  2. Step 2: Convert to fraction form
    22,010.40/32,979.15 = 18,729.90/x
  3. Step 3: Cross multiply
    22,010.40x = 32,979.15 × 18,729.90
  4. Step 4: Simplify right side
    22,010.40x = 617,696,181.59
  5. Step 5: Solve for x
    x = 617,696,181.59/22,010.40
  6. Step 6: Final answer
    x = 28,063.83

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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.