Home / 26,478.71-39,706.41-12,442.73

Finding the Fourth Proportional to 26,478.71, 39,706.41 and 12,442.73

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Solution

The fourth proportional to 26,478.71, 39,706.41 and 12,442.73 is: 18,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.71 : 39,706.41 = 12,442.73 : x
  2. Step 2: Convert to fraction form
    26,478.71/39,706.41 = 12,442.73/x
  3. Step 3: Cross multiply
    26,478.71x = 39,706.41 × 12,442.73
  4. Step 4: Simplify right side
    26,478.71x = 494,056,138.90
  5. Step 5: Solve for x
    x = 494,056,138.90/26,478.71
  6. Step 6: Final answer
    x = 18,658.62

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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.