Home / 20,132.30-30,198.45-16,851.80

Finding the Fourth Proportional to 20,132.30, 30,198.45 and 16,851.80

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Solution

The fourth proportional to 20,132.30, 30,198.45 and 16,851.80 is: 25,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.30 : 30,198.45 = 16,851.80 : x
  2. Step 2: Convert to fraction form
    20,132.30/30,198.45 = 16,851.80/x
  3. Step 3: Cross multiply
    20,132.30x = 30,198.45 × 16,851.80
  4. Step 4: Simplify right side
    20,132.30x = 508,898,239.71
  5. Step 5: Solve for x
    x = 508,898,239.71/20,132.30
  6. Step 6: Final answer
    x = 25,277.70

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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.