Home / 31,440.80-43,387.96-17,293.84

Finding the Fourth Proportional to 31,440.80, 43,387.96 and 17,293.84

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Solution

The fourth proportional to 31,440.80, 43,387.96 and 17,293.84 is: 23,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.80 : 43,387.96 = 17,293.84 : x
  2. Step 2: Convert to fraction form
    31,440.80/43,387.96 = 17,293.84/x
  3. Step 3: Cross multiply
    31,440.80x = 43,387.96 × 17,293.84
  4. Step 4: Simplify right side
    31,440.80x = 750,344,438.17
  5. Step 5: Solve for x
    x = 750,344,438.17/31,440.80
  6. Step 6: Final answer
    x = 23,865.31

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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.