Home / 31,305.47-43,176.38-27,520.61

Finding the Fourth Proportional to 31,305.47, 43,176.38 and 27,520.61

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Solution

The fourth proportional to 31,305.47, 43,176.38 and 27,520.61 is: 37,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.47 : 43,176.38 = 27,520.61 : x
  2. Step 2: Convert to fraction form
    31,305.47/43,176.38 = 27,520.61/x
  3. Step 3: Cross multiply
    31,305.47x = 43,176.38 × 27,520.61
  4. Step 4: Simplify right side
    31,305.47x = 1,188,239,961.71
  5. Step 5: Solve for x
    x = 1,188,239,961.71/31,305.47
  6. Step 6: Final answer
    x = 37,956.31

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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.