Home / 22,562.12-31,132.98-12,489.80

Finding the Fourth Proportional to 22,562.12, 31,132.98 and 12,489.80

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Solution

The fourth proportional to 22,562.12, 31,132.98 and 12,489.80 is: 17,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,562.12 : 31,132.98 = 12,489.80 : x
  2. Step 2: Convert to fraction form
    22,562.12/31,132.98 = 12,489.80/x
  3. Step 3: Cross multiply
    22,562.12x = 31,132.98 × 12,489.80
  4. Step 4: Simplify right side
    22,562.12x = 388,844,693.60
  5. Step 5: Solve for x
    x = 388,844,693.60/22,562.12
  6. Step 6: Final answer
    x = 17,234.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.