Home / 22,753.46-31,395.97-12,679.70

Finding the Fourth Proportional to 22,753.46, 31,395.97 and 12,679.70

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Solution

The fourth proportional to 22,753.46, 31,395.97 and 12,679.70 is: 17,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,753.46 : 31,395.97 = 12,679.70 : x
  2. Step 2: Convert to fraction form
    22,753.46/31,395.97 = 12,679.70/x
  3. Step 3: Cross multiply
    22,753.46x = 31,395.97 × 12,679.70
  4. Step 4: Simplify right side
    22,753.46x = 398,091,339.68
  5. Step 5: Solve for x
    x = 398,091,339.68/22,753.46
  6. Step 6: Final answer
    x = 17,495.86

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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.