Home / 31,361.20-43,278.92-17,215.36

Finding the Fourth Proportional to 31,361.20, 43,278.92 and 17,215.36

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Solution

The fourth proportional to 31,361.20, 43,278.92 and 17,215.36 is: 23,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.20 : 43,278.92 = 17,215.36 : x
  2. Step 2: Convert to fraction form
    31,361.20/43,278.92 = 17,215.36/x
  3. Step 3: Cross multiply
    31,361.20x = 43,278.92 × 17,215.36
  4. Step 4: Simplify right side
    31,361.20x = 745,062,188.21
  5. Step 5: Solve for x
    x = 745,062,188.21/31,361.20
  6. Step 6: Final answer
    x = 23,757.45

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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.