Home / 13,591.74-20,384.45-3,731.81

Finding the Fourth Proportional to 13,591.74, 20,384.45 and 3,731.81

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Solution

The fourth proportional to 13,591.74, 20,384.45 and 3,731.81 is: 5,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.74 : 20,384.45 = 3,731.81 : x
  2. Step 2: Convert to fraction form
    13,591.74/20,384.45 = 3,731.81/x
  3. Step 3: Cross multiply
    13,591.74x = 20,384.45 × 3,731.81
  4. Step 4: Simplify right side
    13,591.74x = 76,070,875.70
  5. Step 5: Solve for x
    x = 76,070,875.70/13,591.74
  6. Step 6: Final answer
    x = 5,596.85

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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.