Home / 25,986.10-38,979.15-10,414.90

Finding the Fourth Proportional to 25,986.10, 38,979.15 and 10,414.90

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Solution

The fourth proportional to 25,986.10, 38,979.15 and 10,414.90 is: 15,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,986.10 : 38,979.15 = 10,414.90 : x
  2. Step 2: Convert to fraction form
    25,986.10/38,979.15 = 10,414.90/x
  3. Step 3: Cross multiply
    25,986.10x = 38,979.15 × 10,414.90
  4. Step 4: Simplify right side
    25,986.10x = 405,963,949.34
  5. Step 5: Solve for x
    x = 405,963,949.34/25,986.10
  6. Step 6: Final answer
    x = 15,622.35

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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.