Home / 38,174.40-52,680.99-21,179.76

Finding the Fourth Proportional to 38,174.40, 52,680.99 and 21,179.76

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Solution

The fourth proportional to 38,174.40, 52,680.99 and 21,179.76 is: 29,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,174.40 : 52,680.99 = 21,179.76 : x
  2. Step 2: Convert to fraction form
    38,174.40/52,680.99 = 21,179.76/x
  3. Step 3: Cross multiply
    38,174.40x = 52,680.99 × 21,179.76
  4. Step 4: Simplify right side
    38,174.40x = 1,115,770,724.76
  5. Step 5: Solve for x
    x = 1,115,770,724.76/38,174.40
  6. Step 6: Final answer
    x = 29,228.25

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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.