Home / 31,280.14-43,186.68-27,917.20

Finding the Fourth Proportional to 31,280.14, 43,186.68 and 27,917.20

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Solution

The fourth proportional to 31,280.14, 43,186.68 and 27,917.20 is: 38,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.14 : 43,186.68 = 27,917.20 : x
  2. Step 2: Convert to fraction form
    31,280.14/43,186.68 = 27,917.20/x
  3. Step 3: Cross multiply
    31,280.14x = 43,186.68 × 27,917.20
  4. Step 4: Simplify right side
    31,280.14x = 1,205,651,182.90
  5. Step 5: Solve for x
    x = 1,205,651,182.90/31,280.14
  6. Step 6: Final answer
    x = 38,543.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.