Home / 40,217.38-60,333.93-12,139.72

Finding the Fourth Proportional to 40,217.38, 60,333.93 and 12,139.72

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Solution

The fourth proportional to 40,217.38, 60,333.93 and 12,139.72 is: 18,211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,217.38 : 60,333.93 = 12,139.72 : x
  2. Step 2: Convert to fraction form
    40,217.38/60,333.93 = 12,139.72/x
  3. Step 3: Cross multiply
    40,217.38x = 60,333.93 × 12,139.72
  4. Step 4: Simplify right side
    40,217.38x = 732,436,865.86
  5. Step 5: Solve for x
    x = 732,436,865.86/40,217.38
  6. Step 6: Final answer
    x = 18,211.95

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1.5x scale

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.