Home / 31,425.85-43,366.80-17,995.95

Finding the Fourth Proportional to 31,425.85, 43,366.80 and 17,995.95

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Solution

The fourth proportional to 31,425.85, 43,366.80 and 17,995.95 is: 24,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.85 : 43,366.80 = 17,995.95 : x
  2. Step 2: Convert to fraction form
    31,425.85/43,366.80 = 17,995.95/x
  3. Step 3: Cross multiply
    31,425.85x = 43,366.80 × 17,995.95
  4. Step 4: Simplify right side
    31,425.85x = 780,426,764.46
  5. Step 5: Solve for x
    x = 780,426,764.46/31,425.85
  6. Step 6: Final answer
    x = 24,833.91

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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.