Home / 31,540.86-43,521.36-18,110.22

Finding the Fourth Proportional to 31,540.86, 43,521.36 and 18,110.22

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Solution

The fourth proportional to 31,540.86, 43,521.36 and 18,110.22 is: 24,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.86 : 43,521.36 = 18,110.22 : x
  2. Step 2: Convert to fraction form
    31,540.86/43,521.36 = 18,110.22/x
  3. Step 3: Cross multiply
    31,540.86x = 43,521.36 × 18,110.22
  4. Step 4: Simplify right side
    31,540.86x = 788,181,404.30
  5. Step 5: Solve for x
    x = 788,181,404.30/31,540.86
  6. Step 6: Final answer
    x = 24,989.22

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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.