Home / 31,176.80-43,023.88-17,029.64

Finding the Fourth Proportional to 31,176.80, 43,023.88 and 17,029.64

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Solution

The fourth proportional to 31,176.80, 43,023.88 and 17,029.64 is: 23,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.80 : 43,023.88 = 17,029.64 : x
  2. Step 2: Convert to fraction form
    31,176.80/43,023.88 = 17,029.64/x
  3. Step 3: Cross multiply
    31,176.80x = 43,023.88 × 17,029.64
  4. Step 4: Simplify right side
    31,176.80x = 732,681,187.80
  5. Step 5: Solve for x
    x = 732,681,187.80/31,176.80
  6. Step 6: Final answer
    x = 23,500.85

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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.