Home / 25,972.85-38,928.51-11,921.04

Finding the Fourth Proportional to 25,972.85, 38,928.51 and 11,921.04

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Solution

The fourth proportional to 25,972.85, 38,928.51 and 11,921.04 is: 17,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.85 : 38,928.51 = 11,921.04 : x
  2. Step 2: Convert to fraction form
    25,972.85/38,928.51 = 11,921.04/x
  3. Step 3: Cross multiply
    25,972.85x = 38,928.51 × 11,921.04
  4. Step 4: Simplify right side
    25,972.85x = 464,068,324.85
  5. Step 5: Solve for x
    x = 464,068,324.85/25,972.85
  6. Step 6: Final answer
    x = 17,867.44

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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.