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Finding the Fourth Proportional to 34,854.80, 48,100.92 and 20,709.68

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Solution

The fourth proportional to 34,854.80, 48,100.92 and 20,709.68 is: 28,580.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,854.80 : 48,100.92 = 20,709.68 : x
  2. Step 2: Convert to fraction form
    34,854.80/48,100.92 = 20,709.68/x
  3. Step 3: Cross multiply
    34,854.80x = 48,100.92 × 20,709.68
  4. Step 4: Simplify right side
    34,854.80x = 996,154,660.91
  5. Step 5: Solve for x
    x = 996,154,660.91/34,854.80
  6. Step 6: Final answer
    x = 28,580.13

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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.