Home / 25,148.82-34,706.31-15,078.90

Finding the Fourth Proportional to 25,148.82, 34,706.31 and 15,078.90

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Solution

The fourth proportional to 25,148.82, 34,706.31 and 15,078.90 is: 20,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,148.82 : 34,706.31 = 15,078.90 : x
  2. Step 2: Convert to fraction form
    25,148.82/34,706.31 = 15,078.90/x
  3. Step 3: Cross multiply
    25,148.82x = 34,706.31 × 15,078.90
  4. Step 4: Simplify right side
    25,148.82x = 523,332,977.86
  5. Step 5: Solve for x
    x = 523,332,977.86/25,148.82
  6. Step 6: Final answer
    x = 20,809.44

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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.