Home / 31,380.04-43,304.28-17,040.16

Finding the Fourth Proportional to 31,380.04, 43,304.28 and 17,040.16

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Solution

The fourth proportional to 31,380.04, 43,304.28 and 17,040.16 is: 23,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.04 : 43,304.28 = 17,040.16 : x
  2. Step 2: Convert to fraction form
    31,380.04/43,304.28 = 17,040.16/x
  3. Step 3: Cross multiply
    31,380.04x = 43,304.28 × 17,040.16
  4. Step 4: Simplify right side
    31,380.04x = 737,911,859.88
  5. Step 5: Solve for x
    x = 737,911,859.88/31,380.04
  6. Step 6: Final answer
    x = 23,515.33

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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.