Home / 19,387.44-29,084.76-12,819.12

Finding the Fourth Proportional to 19,387.44, 29,084.76 and 12,819.12

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Solution

The fourth proportional to 19,387.44, 29,084.76 and 12,819.12 is: 19,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.44 : 29,084.76 = 12,819.12 : x
  2. Step 2: Convert to fraction form
    19,387.44/29,084.76 = 12,819.12/x
  3. Step 3: Cross multiply
    19,387.44x = 29,084.76 × 12,819.12
  4. Step 4: Simplify right side
    19,387.44x = 372,841,028.61
  5. Step 5: Solve for x
    x = 372,841,028.61/19,387.44
  6. Step 6: Final answer
    x = 19,231.06

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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.