Home / 40,651.07-60,932.12-20,930.81

Finding the Fourth Proportional to 40,651.07, 60,932.12 and 20,930.81

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Solution

The fourth proportional to 40,651.07, 60,932.12 and 20,930.81 is: 31,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,651.07 : 60,932.12 = 20,930.81 : x
  2. Step 2: Convert to fraction form
    40,651.07/60,932.12 = 20,930.81/x
  3. Step 3: Cross multiply
    40,651.07x = 60,932.12 × 20,930.81
  4. Step 4: Simplify right side
    40,651.07x = 1,275,358,217.30
  5. Step 5: Solve for x
    x = 1,275,358,217.30/40,651.07
  6. Step 6: Final answer
    x = 31,373.30

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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.