Home / 31,442.12-43,391.04-17,295.88

Finding the Fourth Proportional to 31,442.12, 43,391.04 and 17,295.88

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Solution

The fourth proportional to 31,442.12, 43,391.04 and 17,295.88 is: 23,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.12 : 43,391.04 = 17,295.88 : x
  2. Step 2: Convert to fraction form
    31,442.12/43,391.04 = 17,295.88/x
  3. Step 3: Cross multiply
    31,442.12x = 43,391.04 × 17,295.88
  4. Step 4: Simplify right side
    31,442.12x = 750,486,220.92
  5. Step 5: Solve for x
    x = 750,486,220.92/31,442.12
  6. Step 6: Final answer
    x = 23,868.82

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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.