Home / 20,543.05-30,819.18-6,503.91

Finding the Fourth Proportional to 20,543.05, 30,819.18 and 6,503.91

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Solution

The fourth proportional to 20,543.05, 30,819.18 and 6,503.91 is: 9,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.05 : 30,819.18 = 6,503.91 : x
  2. Step 2: Convert to fraction form
    20,543.05/30,819.18 = 6,503.91/x
  3. Step 3: Cross multiply
    20,543.05x = 30,819.18 × 6,503.91
  4. Step 4: Simplify right side
    20,543.05x = 200,445,172.99
  5. Step 5: Solve for x
    x = 200,445,172.99/20,543.05
  6. Step 6: Final answer
    x = 9,757.33

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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.