Home / 47,383.11-71,074.62-12,321.81

Finding the Fourth Proportional to 47,383.11, 71,074.62 and 12,321.81

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Solution

The fourth proportional to 47,383.11, 71,074.62 and 12,321.81 is: 18,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,383.11 : 71,074.62 = 12,321.81 : x
  2. Step 2: Convert to fraction form
    47,383.11/71,074.62 = 12,321.81/x
  3. Step 3: Cross multiply
    47,383.11x = 71,074.62 × 12,321.81
  4. Step 4: Simplify right side
    47,383.11x = 875,767,963.46
  5. Step 5: Solve for x
    x = 875,767,963.46/47,383.11
  6. Step 6: Final answer
    x = 18,482.70

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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.