Home / 18,890.66-28,337.01-5,742.03

Finding the Fourth Proportional to 18,890.66, 28,337.01 and 5,742.03

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Solution

The fourth proportional to 18,890.66, 28,337.01 and 5,742.03 is: 8,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.66 : 28,337.01 = 5,742.03 : x
  2. Step 2: Convert to fraction form
    18,890.66/28,337.01 = 5,742.03/x
  3. Step 3: Cross multiply
    18,890.66x = 28,337.01 × 5,742.03
  4. Step 4: Simplify right side
    18,890.66x = 162,712,046.26
  5. Step 5: Solve for x
    x = 162,712,046.26/18,890.66
  6. Step 6: Final answer
    x = 8,613.36

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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.