Home / 18,889.26-28,337.13-5,742.96

Finding the Fourth Proportional to 18,889.26, 28,337.13 and 5,742.96

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Solution

The fourth proportional to 18,889.26, 28,337.13 and 5,742.96 is: 8,615.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.26 : 28,337.13 = 5,742.96 : x
  2. Step 2: Convert to fraction form
    18,889.26/28,337.13 = 5,742.96/x
  3. Step 3: Cross multiply
    18,889.26x = 28,337.13 × 5,742.96
  4. Step 4: Simplify right side
    18,889.26x = 162,739,004.10
  5. Step 5: Solve for x
    x = 162,739,004.10/18,889.26
  6. Step 6: Final answer
    x = 8,615.43

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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.