Home / 20,763.40-31,149.24-5,972.44

Finding the Fourth Proportional to 20,763.40, 31,149.24 and 5,972.44

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Solution

The fourth proportional to 20,763.40, 31,149.24 and 5,972.44 is: 8,959.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.40 : 31,149.24 = 5,972.44 : x
  2. Step 2: Convert to fraction form
    20,763.40/31,149.24 = 5,972.44/x
  3. Step 3: Cross multiply
    20,763.40x = 31,149.24 × 5,972.44
  4. Step 4: Simplify right side
    20,763.40x = 186,036,966.95
  5. Step 5: Solve for x
    x = 186,036,966.95/20,763.40
  6. Step 6: Final answer
    x = 8,959.85

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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.