Home / 31,889.26-43,992.45-20,562.39

Finding the Fourth Proportional to 31,889.26, 43,992.45 and 20,562.39

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Solution

The fourth proportional to 31,889.26, 43,992.45 and 20,562.39 is: 28,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889.26 : 43,992.45 = 20,562.39 : x
  2. Step 2: Convert to fraction form
    31,889.26/43,992.45 = 20,562.39/x
  3. Step 3: Cross multiply
    31,889.26x = 43,992.45 × 20,562.39
  4. Step 4: Simplify right side
    31,889.26x = 904,589,862.55
  5. Step 5: Solve for x
    x = 904,589,862.55/31,889.26
  6. Step 6: Final answer
    x = 28,366.60

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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.