Home / 31,862.26-43,957.29-18,431.02

Finding the Fourth Proportional to 31,862.26, 43,957.29 and 18,431.02

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Solution

The fourth proportional to 31,862.26, 43,957.29 and 18,431.02 is: 25,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.26 : 43,957.29 = 18,431.02 : x
  2. Step 2: Convert to fraction form
    31,862.26/43,957.29 = 18,431.02/x
  3. Step 3: Cross multiply
    31,862.26x = 43,957.29 × 18,431.02
  4. Step 4: Simplify right side
    31,862.26x = 810,177,691.14
  5. Step 5: Solve for x
    x = 810,177,691.14/31,862.26
  6. Step 6: Final answer
    x = 25,427.50

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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.