Home / 18,868.24-28,298.56-5,717.52

Finding the Fourth Proportional to 18,868.24, 28,298.56 and 5,717.52

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Solution

The fourth proportional to 18,868.24, 28,298.56 and 5,717.52 is: 8,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.24 : 28,298.56 = 5,717.52 : x
  2. Step 2: Convert to fraction form
    18,868.24/28,298.56 = 5,717.52/x
  3. Step 3: Cross multiply
    18,868.24x = 28,298.56 × 5,717.52
  4. Step 4: Simplify right side
    18,868.24x = 161,797,582.77
  5. Step 5: Solve for x
    x = 161,797,582.77/18,868.24
  6. Step 6: Final answer
    x = 8,575.13

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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.