Home / 22,020.20-32,981.70-18,132.20

Finding the Fourth Proportional to 22,020.20, 32,981.70 and 18,132.20

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Solution

The fourth proportional to 22,020.20, 32,981.70 and 18,132.20 is: 27,158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.20 : 32,981.70 = 18,132.20 : x
  2. Step 2: Convert to fraction form
    22,020.20/32,981.70 = 18,132.20/x
  3. Step 3: Cross multiply
    22,020.20x = 32,981.70 × 18,132.20
  4. Step 4: Simplify right side
    22,020.20x = 598,030,780.74
  5. Step 5: Solve for x
    x = 598,030,780.74/22,020.20
  6. Step 6: Final answer
    x = 27,158.28

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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.