Home / 18,890.88-28,337.91-5,743.37

Finding the Fourth Proportional to 18,890.88, 28,337.91 and 5,743.37

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Solution

The fourth proportional to 18,890.88, 28,337.91 and 5,743.37 is: 8,615.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.88 : 28,337.91 = 5,743.37 : x
  2. Step 2: Convert to fraction form
    18,890.88/28,337.91 = 5,743.37/x
  3. Step 3: Cross multiply
    18,890.88x = 28,337.91 × 5,743.37
  4. Step 4: Simplify right side
    18,890.88x = 162,754,960.47
  5. Step 5: Solve for x
    x = 162,754,960.47/18,890.88
  6. Step 6: Final answer
    x = 8,615.53

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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.