Home / 28,115.24-38,772.51-18,046.76

Finding the Fourth Proportional to 28,115.24, 38,772.51 and 18,046.76

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Solution

The fourth proportional to 28,115.24, 38,772.51 and 18,046.76 is: 24,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.24 : 38,772.51 = 18,046.76 : x
  2. Step 2: Convert to fraction form
    28,115.24/38,772.51 = 18,046.76/x
  3. Step 3: Cross multiply
    28,115.24x = 38,772.51 × 18,046.76
  4. Step 4: Simplify right side
    28,115.24x = 699,718,182.57
  5. Step 5: Solve for x
    x = 699,718,182.57/28,115.24
  6. Step 6: Final answer
    x = 24,887.51

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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.