Home / 31,671.18-47,491.39-11,951.27

Finding the Fourth Proportional to 31,671.18, 47,491.39 and 11,951.27

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Solution

The fourth proportional to 31,671.18, 47,491.39 and 11,951.27 is: 17,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,671.18 : 47,491.39 = 11,951.27 : x
  2. Step 2: Convert to fraction form
    31,671.18/47,491.39 = 11,951.27/x
  3. Step 3: Cross multiply
    31,671.18x = 47,491.39 × 11,951.27
  4. Step 4: Simplify right side
    31,671.18x = 567,582,480.10
  5. Step 5: Solve for x
    x = 567,582,480.10/31,671.18
  6. Step 6: Final answer
    x = 17,921.10

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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.