Home / 31,977.72-47,966.55-8,604.16

Finding the Fourth Proportional to 31,977.72, 47,966.55 and 8,604.16

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Solution

The fourth proportional to 31,977.72, 47,966.55 and 8,604.16 is: 12,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.72 : 47,966.55 = 8,604.16 : x
  2. Step 2: Convert to fraction form
    31,977.72/47,966.55 = 8,604.16/x
  3. Step 3: Cross multiply
    31,977.72x = 47,966.55 × 8,604.16
  4. Step 4: Simplify right side
    31,977.72x = 412,711,870.85
  5. Step 5: Solve for x
    x = 412,711,870.85/31,977.72
  6. Step 6: Final answer
    x = 12,906.23

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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.