Home / 20,760.90-31,136.68-5,966.52

Finding the Fourth Proportional to 20,760.90, 31,136.68 and 5,966.52

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Solution

The fourth proportional to 20,760.90, 31,136.68 and 5,966.52 is: 8,948.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.90 : 31,136.68 = 5,966.52 : x
  2. Step 2: Convert to fraction form
    20,760.90/31,136.68 = 5,966.52/x
  3. Step 3: Cross multiply
    20,760.90x = 31,136.68 × 5,966.52
  4. Step 4: Simplify right side
    20,760.90x = 185,777,623.95
  5. Step 5: Solve for x
    x = 185,777,623.95/20,760.90
  6. Step 6: Final answer
    x = 8,948.44

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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.