Home / 22,755.01-31,400.88-12,684.55

Finding the Fourth Proportional to 22,755.01, 31,400.88 and 12,684.55

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Solution

The fourth proportional to 22,755.01, 31,400.88 and 12,684.55 is: 17,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,755.01 : 31,400.88 = 12,684.55 : x
  2. Step 2: Convert to fraction form
    22,755.01/31,400.88 = 12,684.55/x
  3. Step 3: Cross multiply
    22,755.01x = 31,400.88 × 12,684.55
  4. Step 4: Simplify right side
    22,755.01x = 398,306,032.40
  5. Step 5: Solve for x
    x = 398,306,032.40/22,755.01
  6. Step 6: Final answer
    x = 17,504.10

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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.