Home / 47,451.88-71,186-19,387.16

Finding the Fourth Proportional to 47,451.88, 71,186 and 19,387.16

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Solution

The fourth proportional to 47,451.88, 71,186 and 19,387.16 is: 29,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,451.88 : 71,186 = 19,387.16 : x
  2. Step 2: Convert to fraction form
    47,451.88/71,186 = 19,387.16/x
  3. Step 3: Cross multiply
    47,451.88x = 71,186 × 19,387.16
  4. Step 4: Simplify right side
    47,451.88x = 1,380,094,371.76
  5. Step 5: Solve for x
    x = 1,380,094,371.76/47,451.88
  6. Step 6: Final answer
    x = 29,084.08

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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.