Home / 31,974.47-47,966.09-10,908.86

Finding the Fourth Proportional to 31,974.47, 47,966.09 and 10,908.86

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Solution

The fourth proportional to 31,974.47, 47,966.09 and 10,908.86 is: 16,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.47 : 47,966.09 = 10,908.86 : x
  2. Step 2: Convert to fraction form
    31,974.47/47,966.09 = 10,908.86/x
  3. Step 3: Cross multiply
    31,974.47x = 47,966.09 × 10,908.86
  4. Step 4: Simplify right side
    31,974.47x = 523,255,360.56
  5. Step 5: Solve for x
    x = 523,255,360.56/31,974.47
  6. Step 6: Final answer
    x = 16,364.79

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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.