Home / 47,981.40-71,981.33-18,396.93

Finding the Fourth Proportional to 47,981.40, 71,981.33 and 18,396.93

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Solution

The fourth proportional to 47,981.40, 71,981.33 and 18,396.93 is: 27,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,981.40 : 71,981.33 = 18,396.93 : x
  2. Step 2: Convert to fraction form
    47,981.40/71,981.33 = 18,396.93/x
  3. Step 3: Cross multiply
    47,981.40x = 71,981.33 × 18,396.93
  4. Step 4: Simplify right side
    47,981.40x = 1,324,235,217.38
  5. Step 5: Solve for x
    x = 1,324,235,217.38/47,981.40
  6. Step 6: Final answer
    x = 27,598.93

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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.