Home / 31,811.48-43,899.18-17,663.48

Finding the Fourth Proportional to 31,811.48, 43,899.18 and 17,663.48

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Solution

The fourth proportional to 31,811.48, 43,899.18 and 17,663.48 is: 24,375.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.48 : 43,899.18 = 17,663.48 : x
  2. Step 2: Convert to fraction form
    31,811.48/43,899.18 = 17,663.48/x
  3. Step 3: Cross multiply
    31,811.48x = 43,899.18 × 17,663.48
  4. Step 4: Simplify right side
    31,811.48x = 775,412,287.95
  5. Step 5: Solve for x
    x = 775,412,287.95/31,811.48
  6. Step 6: Final answer
    x = 24,375.23

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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.