Home / 30,951.11-42,713.00-16,803.95

Finding the Fourth Proportional to 30,951.11, 42,713.00 and 16,803.95

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Solution

The fourth proportional to 30,951.11, 42,713.00 and 16,803.95 is: 23,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.11 : 42,713.00 = 16,803.95 : x
  2. Step 2: Convert to fraction form
    30,951.11/42,713.00 = 16,803.95/x
  3. Step 3: Cross multiply
    30,951.11x = 42,713.00 × 16,803.95
  4. Step 4: Simplify right side
    30,951.11x = 717,747,032.33
  5. Step 5: Solve for x
    x = 717,747,032.33/30,951.11
  6. Step 6: Final answer
    x = 23,189.71

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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.