Home / 31,837.92-43,932.96-18,407.04

Finding the Fourth Proportional to 31,837.92, 43,932.96 and 18,407.04

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Solution

The fourth proportional to 31,837.92, 43,932.96 and 18,407.04 is: 25,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.92 : 43,932.96 = 18,407.04 : x
  2. Step 2: Convert to fraction form
    31,837.92/43,932.96 = 18,407.04/x
  3. Step 3: Cross multiply
    31,837.92x = 43,932.96 × 18,407.04
  4. Step 4: Simplify right side
    31,837.92x = 808,675,752.04
  5. Step 5: Solve for x
    x = 808,675,752.04/31,837.92
  6. Step 6: Final answer
    x = 25,399.77

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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.