Home / 37,871.11-56,806.71-20,451.70

Finding the Fourth Proportional to 37,871.11, 56,806.71 and 20,451.70

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Solution

The fourth proportional to 37,871.11, 56,806.71 and 20,451.70 is: 30,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,871.11 : 56,806.71 = 20,451.70 : x
  2. Step 2: Convert to fraction form
    37,871.11/56,806.71 = 20,451.70/x
  3. Step 3: Cross multiply
    37,871.11x = 56,806.71 × 20,451.70
  4. Step 4: Simplify right side
    37,871.11x = 1,161,793,790.91
  5. Step 5: Solve for x
    x = 1,161,793,790.91/37,871.11
  6. Step 6: Final answer
    x = 30,677.57

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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.