Home / 31,435.07-43,381.22-17,287.92

Finding the Fourth Proportional to 31,435.07, 43,381.22 and 17,287.92

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Solution

The fourth proportional to 31,435.07, 43,381.22 and 17,287.92 is: 23,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.07 : 43,381.22 = 17,287.92 : x
  2. Step 2: Convert to fraction form
    31,435.07/43,381.22 = 17,287.92/x
  3. Step 3: Cross multiply
    31,435.07x = 43,381.22 × 17,287.92
  4. Step 4: Simplify right side
    31,435.07x = 749,970,974.42
  5. Step 5: Solve for x
    x = 749,970,974.42/31,435.07
  6. Step 6: Final answer
    x = 23,857.78

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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.