Home / 21,646.20-32,469.30-18,001.20

Finding the Fourth Proportional to 21,646.20, 32,469.30 and 18,001.20

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Solution

The fourth proportional to 21,646.20, 32,469.30 and 18,001.20 is: 27,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.20 : 32,469.30 = 18,001.20 : x
  2. Step 2: Convert to fraction form
    21,646.20/32,469.30 = 18,001.20/x
  3. Step 3: Cross multiply
    21,646.20x = 32,469.30 × 18,001.20
  4. Step 4: Simplify right side
    21,646.20x = 584,486,363.16
  5. Step 5: Solve for x
    x = 584,486,363.16/21,646.20
  6. Step 6: Final answer
    x = 27,001.80

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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.