Home / 31,781.06-47,671.61-11,004.56

Finding the Fourth Proportional to 31,781.06, 47,671.61 and 11,004.56

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Solution

The fourth proportional to 31,781.06, 47,671.61 and 11,004.56 is: 16,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.06 : 47,671.61 = 11,004.56 : x
  2. Step 2: Convert to fraction form
    31,781.06/47,671.61 = 11,004.56/x
  3. Step 3: Cross multiply
    31,781.06x = 47,671.61 × 11,004.56
  4. Step 4: Simplify right side
    31,781.06x = 524,605,156.70
  5. Step 5: Solve for x
    x = 524,605,156.70/31,781.06
  6. Step 6: Final answer
    x = 16,506.85

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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.