Home / 31,162.40-43,003.52-17,015.36

Finding the Fourth Proportional to 31,162.40, 43,003.52 and 17,015.36

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Solution

The fourth proportional to 31,162.40, 43,003.52 and 17,015.36 is: 23,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,162.40 : 43,003.52 = 17,015.36 : x
  2. Step 2: Convert to fraction form
    31,162.40/43,003.52 = 17,015.36/x
  3. Step 3: Cross multiply
    31,162.40x = 43,003.52 × 17,015.36
  4. Step 4: Simplify right side
    31,162.40x = 731,720,374.07
  5. Step 5: Solve for x
    x = 731,720,374.07/31,162.40
  6. Step 6: Final answer
    x = 23,480.87

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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.