Home / 23,021.76-31,769.64-13,591.20

Finding the Fourth Proportional to 23,021.76, 31,769.64 and 13,591.20

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Solution

The fourth proportional to 23,021.76, 31,769.64 and 13,591.20 is: 18,755.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,021.76 : 31,769.64 = 13,591.20 : x
  2. Step 2: Convert to fraction form
    23,021.76/31,769.64 = 13,591.20/x
  3. Step 3: Cross multiply
    23,021.76x = 31,769.64 × 13,591.20
  4. Step 4: Simplify right side
    23,021.76x = 431,787,531.17
  5. Step 5: Solve for x
    x = 431,787,531.17/23,021.76
  6. Step 6: Final answer
    x = 18,755.63

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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.