Home / 31,670.22-43,706.88-18,243.39

Finding the Fourth Proportional to 31,670.22, 43,706.88 and 18,243.39

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Solution

The fourth proportional to 31,670.22, 43,706.88 and 18,243.39 is: 25,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,670.22 : 43,706.88 = 18,243.39 : x
  2. Step 2: Convert to fraction form
    31,670.22/43,706.88 = 18,243.39/x
  3. Step 3: Cross multiply
    31,670.22x = 43,706.88 × 18,243.39
  4. Step 4: Simplify right side
    31,670.22x = 797,361,657.52
  5. Step 5: Solve for x
    x = 797,361,657.52/31,670.22
  6. Step 6: Final answer
    x = 25,177.02

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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.