Home / 34,251.65-47,269.07-20,820.70

Finding the Fourth Proportional to 34,251.65, 47,269.07 and 20,820.70

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Solution

The fourth proportional to 34,251.65, 47,269.07 and 20,820.70 is: 28,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,251.65 : 47,269.07 = 20,820.70 : x
  2. Step 2: Convert to fraction form
    34,251.65/47,269.07 = 20,820.70/x
  3. Step 3: Cross multiply
    34,251.65x = 47,269.07 × 20,820.70
  4. Step 4: Simplify right side
    34,251.65x = 984,175,125.75
  5. Step 5: Solve for x
    x = 984,175,125.75/34,251.65
  6. Step 6: Final answer
    x = 28,733.66

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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.