Home / 18,695.42-28,034.76-5,543.18

Finding the Fourth Proportional to 18,695.42, 28,034.76 and 5,543.18

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Solution

The fourth proportional to 18,695.42, 28,034.76 and 5,543.18 is: 8,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.42 : 28,034.76 = 5,543.18 : x
  2. Step 2: Convert to fraction form
    18,695.42/28,034.76 = 5,543.18/x
  3. Step 3: Cross multiply
    18,695.42x = 28,034.76 × 5,543.18
  4. Step 4: Simplify right side
    18,695.42x = 155,401,720.94
  5. Step 5: Solve for x
    x = 155,401,720.94/18,695.42
  6. Step 6: Final answer
    x = 8,312.29

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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.