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Finding the Fourth Proportional to 34,012.80, 51,022.56 and 10,639.68

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Solution

The fourth proportional to 34,012.80, 51,022.56 and 10,639.68 is: 15,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,012.80 : 51,022.56 = 10,639.68 : x
  2. Step 2: Convert to fraction form
    34,012.80/51,022.56 = 10,639.68/x
  3. Step 3: Cross multiply
    34,012.80x = 51,022.56 × 10,639.68
  4. Step 4: Simplify right side
    34,012.80x = 542,863,711.18
  5. Step 5: Solve for x
    x = 542,863,711.18/34,012.80
  6. Step 6: Final answer
    x = 15,960.57

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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.