Home / 18,908.40-28,367.19-5,761.02

Finding the Fourth Proportional to 18,908.40, 28,367.19 and 5,761.02

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Solution

The fourth proportional to 18,908.40, 28,367.19 and 5,761.02 is: 8,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.40 : 28,367.19 = 5,761.02 : x
  2. Step 2: Convert to fraction form
    18,908.40/28,367.19 = 5,761.02/x
  3. Step 3: Cross multiply
    18,908.40x = 28,367.19 × 5,761.02
  4. Step 4: Simplify right side
    18,908.40x = 163,423,948.93
  5. Step 5: Solve for x
    x = 163,423,948.93/18,908.40
  6. Step 6: Final answer
    x = 8,642.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.