Home / 20,250.78-27,948.24-11,301.39

Finding the Fourth Proportional to 20,250.78, 27,948.24 and 11,301.39

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Solution

The fourth proportional to 20,250.78, 27,948.24 and 11,301.39 is: 15,597.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.78 : 27,948.24 = 11,301.39 : x
  2. Step 2: Convert to fraction form
    20,250.78/27,948.24 = 11,301.39/x
  3. Step 3: Cross multiply
    20,250.78x = 27,948.24 × 11,301.39
  4. Step 4: Simplify right side
    20,250.78x = 315,853,960.05
  5. Step 5: Solve for x
    x = 315,853,960.05/20,250.78
  6. Step 6: Final answer
    x = 15,597.13

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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.