Home / 31,170.80-43,010.69-17,742.29

Finding the Fourth Proportional to 31,170.80, 43,010.69 and 17,742.29

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Solution

The fourth proportional to 31,170.80, 43,010.69 and 17,742.29 is: 24,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.80 : 43,010.69 = 17,742.29 : x
  2. Step 2: Convert to fraction form
    31,170.80/43,010.69 = 17,742.29/x
  3. Step 3: Cross multiply
    31,170.80x = 43,010.69 × 17,742.29
  4. Step 4: Simplify right side
    31,170.80x = 763,107,831.32
  5. Step 5: Solve for x
    x = 763,107,831.32/31,170.80
  6. Step 6: Final answer
    x = 24,481.49

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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.