Home / 22,755.54-31,402.57-12,683.87

Finding the Fourth Proportional to 22,755.54, 31,402.57 and 12,683.87

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Solution

The fourth proportional to 22,755.54, 31,402.57 and 12,683.87 is: 17,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,755.54 : 31,402.57 = 12,683.87 : x
  2. Step 2: Convert to fraction form
    22,755.54/31,402.57 = 12,683.87/x
  3. Step 3: Cross multiply
    22,755.54x = 31,402.57 × 12,683.87
  4. Step 4: Simplify right side
    22,755.54x = 398,306,115.55
  5. Step 5: Solve for x
    x = 398,306,115.55/22,755.54
  6. Step 6: Final answer
    x = 17,503.70

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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.