Home / 20,944.44-31,377.65-10,402.43

Finding the Fourth Proportional to 20,944.44, 31,377.65 and 10,402.43

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Solution

The fourth proportional to 20,944.44, 31,377.65 and 10,402.43 is: 15,584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.44 : 31,377.65 = 10,402.43 : x
  2. Step 2: Convert to fraction form
    20,944.44/31,377.65 = 10,402.43/x
  3. Step 3: Cross multiply
    20,944.44x = 31,377.65 × 10,402.43
  4. Step 4: Simplify right side
    20,944.44x = 326,403,598.79
  5. Step 5: Solve for x
    x = 326,403,598.79/20,944.44
  6. Step 6: Final answer
    x = 15,584.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.