Home / 31,079.92-42,890.26-16,932.76

Finding the Fourth Proportional to 31,079.92, 42,890.26 and 16,932.76

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Solution

The fourth proportional to 31,079.92, 42,890.26 and 16,932.76 is: 23,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,079.92 : 42,890.26 = 16,932.76 : x
  2. Step 2: Convert to fraction form
    31,079.92/42,890.26 = 16,932.76/x
  3. Step 3: Cross multiply
    31,079.92x = 42,890.26 × 16,932.76
  4. Step 4: Simplify right side
    31,079.92x = 726,250,602.37
  5. Step 5: Solve for x
    x = 726,250,602.37/31,079.92
  6. Step 6: Final answer
    x = 23,367.20

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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.