Home / 47,981.85-71,980.97-16,390.17

Finding the Fourth Proportional to 47,981.85, 71,980.97 and 16,390.17

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Solution

The fourth proportional to 47,981.85, 71,980.97 and 16,390.17 is: 24,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,981.85 : 71,980.97 = 16,390.17 : x
  2. Step 2: Convert to fraction form
    47,981.85/71,980.97 = 16,390.17/x
  3. Step 3: Cross multiply
    47,981.85x = 71,980.97 × 16,390.17
  4. Step 4: Simplify right side
    47,981.85x = 1,179,780,253.11
  5. Step 5: Solve for x
    x = 1,179,780,253.11/47,981.85
  6. Step 6: Final answer
    x = 24,588.05

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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.