Home / 25,961.80-38,928.30-11,168.20

Finding the Fourth Proportional to 25,961.80, 38,928.30 and 11,168.20

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Solution

The fourth proportional to 25,961.80, 38,928.30 and 11,168.20 is: 16,746.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,961.80 : 38,928.30 = 11,168.20 : x
  2. Step 2: Convert to fraction form
    25,961.80/38,928.30 = 11,168.20/x
  3. Step 3: Cross multiply
    25,961.80x = 38,928.30 × 11,168.20
  4. Step 4: Simplify right side
    25,961.80x = 434,759,040.06
  5. Step 5: Solve for x
    x = 434,759,040.06/25,961.80
  6. Step 6: Final answer
    x = 16,746.11

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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.