Home / 20,687.02-31,033.41-7,545.58

Finding the Fourth Proportional to 20,687.02, 31,033.41 and 7,545.58

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Solution

The fourth proportional to 20,687.02, 31,033.41 and 7,545.58 is: 11,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687.02 : 31,033.41 = 7,545.58 : x
  2. Step 2: Convert to fraction form
    20,687.02/31,033.41 = 7,545.58/x
  3. Step 3: Cross multiply
    20,687.02x = 31,033.41 × 7,545.58
  4. Step 4: Simplify right side
    20,687.02x = 234,165,077.83
  5. Step 5: Solve for x
    x = 234,165,077.83/20,687.02
  6. Step 6: Final answer
    x = 11,319.42

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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.