Home / 20,307.85-30,462.68-7,160.34

Finding the Fourth Proportional to 20,307.85, 30,462.68 and 7,160.34

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Solution

The fourth proportional to 20,307.85, 30,462.68 and 7,160.34 is: 10,740.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.85 : 30,462.68 = 7,160.34 : x
  2. Step 2: Convert to fraction form
    20,307.85/30,462.68 = 7,160.34/x
  3. Step 3: Cross multiply
    20,307.85x = 30,462.68 × 7,160.34
  4. Step 4: Simplify right side
    20,307.85x = 218,123,146.11
  5. Step 5: Solve for x
    x = 218,123,146.11/20,307.85
  6. Step 6: Final answer
    x = 10,740.83

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1.5x scale

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.