Home / 31,306.80-43,205.04-17,160.24

Finding the Fourth Proportional to 31,306.80, 43,205.04 and 17,160.24

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Solution

The fourth proportional to 31,306.80, 43,205.04 and 17,160.24 is: 23,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.80 : 43,205.04 = 17,160.24 : x
  2. Step 2: Convert to fraction form
    31,306.80/43,205.04 = 17,160.24/x
  3. Step 3: Cross multiply
    31,306.80x = 43,205.04 × 17,160.24
  4. Step 4: Simplify right side
    31,306.80x = 741,408,855.61
  5. Step 5: Solve for x
    x = 741,408,855.61/31,306.80
  6. Step 6: Final answer
    x = 23,682.04

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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.