Home / 34,269.48-47,289.42-20,120.40

Finding the Fourth Proportional to 34,269.48, 47,289.42 and 20,120.40

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Solution

The fourth proportional to 34,269.48, 47,289.42 and 20,120.40 is: 27,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,269.48 : 47,289.42 = 20,120.40 : x
  2. Step 2: Convert to fraction form
    34,269.48/47,289.42 = 20,120.40/x
  3. Step 3: Cross multiply
    34,269.48x = 47,289.42 × 20,120.40
  4. Step 4: Simplify right side
    34,269.48x = 951,482,046.17
  5. Step 5: Solve for x
    x = 951,482,046.17/34,269.48
  6. Step 6: Final answer
    x = 27,764.71

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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.