Home / 31,821.38-47,747.56-12,845.24

Finding the Fourth Proportional to 31,821.38, 47,747.56 and 12,845.24

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Solution

The fourth proportional to 31,821.38, 47,747.56 and 12,845.24 is: 19,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.38 : 47,747.56 = 12,845.24 : x
  2. Step 2: Convert to fraction form
    31,821.38/47,747.56 = 12,845.24/x
  3. Step 3: Cross multiply
    31,821.38x = 47,747.56 × 12,845.24
  4. Step 4: Simplify right side
    31,821.38x = 613,328,867.61
  5. Step 5: Solve for x
    x = 613,328,867.61/31,821.38
  6. Step 6: Final answer
    x = 19,274.11

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1.5x scale

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.