Home / 40,099.84-55,375.18-28,191.62

Finding the Fourth Proportional to 40,099.84, 55,375.18 and 28,191.62

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Solution

The fourth proportional to 40,099.84, 55,375.18 and 28,191.62 is: 38,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,099.84 : 55,375.18 = 28,191.62 : x
  2. Step 2: Convert to fraction form
    40,099.84/55,375.18 = 28,191.62/x
  3. Step 3: Cross multiply
    40,099.84x = 55,375.18 × 28,191.62
  4. Step 4: Simplify right side
    40,099.84x = 1,561,116,031.99
  5. Step 5: Solve for x
    x = 1,561,116,031.99/40,099.84
  6. Step 6: Final answer
    x = 38,930.73

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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.