Home / 31,458.20-43,412.30-17,311.95

Finding the Fourth Proportional to 31,458.20, 43,412.30 and 17,311.95

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Solution

The fourth proportional to 31,458.20, 43,412.30 and 17,311.95 is: 23,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.20 : 43,412.30 = 17,311.95 : x
  2. Step 2: Convert to fraction form
    31,458.20/43,412.30 = 17,311.95/x
  3. Step 3: Cross multiply
    31,458.20x = 43,412.30 × 17,311.95
  4. Step 4: Simplify right side
    31,458.20x = 751,551,480.43
  5. Step 5: Solve for x
    x = 751,551,480.43/31,458.20
  6. Step 6: Final answer
    x = 23,890.48

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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.