Home / 34,861.78-48,105.66-20,711.89

Finding the Fourth Proportional to 34,861.78, 48,105.66 and 20,711.89

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Solution

The fourth proportional to 34,861.78, 48,105.66 and 20,711.89 is: 28,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,861.78 : 48,105.66 = 20,711.89 : x
  2. Step 2: Convert to fraction form
    34,861.78/48,105.66 = 20,711.89/x
  3. Step 3: Cross multiply
    34,861.78x = 48,105.66 × 20,711.89
  4. Step 4: Simplify right side
    34,861.78x = 996,359,138.30
  5. Step 5: Solve for x
    x = 996,359,138.30/34,861.78
  6. Step 6: Final answer
    x = 28,580.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.