Home / 28,517.40-42,778.46-10,510.49

Finding the Fourth Proportional to 28,517.40, 42,778.46 and 10,510.49

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Solution

The fourth proportional to 28,517.40, 42,778.46 and 10,510.49 is: 15,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.40 : 42,778.46 = 10,510.49 : x
  2. Step 2: Convert to fraction form
    28,517.40/42,778.46 = 10,510.49/x
  3. Step 3: Cross multiply
    28,517.40x = 42,778.46 × 10,510.49
  4. Step 4: Simplify right side
    28,517.40x = 449,622,709.27
  5. Step 5: Solve for x
    x = 449,622,709.27/28,517.40
  6. Step 6: Final answer
    x = 15,766.61

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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.