Home / 40,819.88-61,207.95-18,621.29

Finding the Fourth Proportional to 40,819.88, 61,207.95 and 18,621.29

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Solution

The fourth proportional to 40,819.88, 61,207.95 and 18,621.29 is: 27,921.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,819.88 : 61,207.95 = 18,621.29 : x
  2. Step 2: Convert to fraction form
    40,819.88/61,207.95 = 18,621.29/x
  3. Step 3: Cross multiply
    40,819.88x = 61,207.95 × 18,621.29
  4. Step 4: Simplify right side
    40,819.88x = 1,139,770,987.26
  5. Step 5: Solve for x
    x = 1,139,770,987.26/40,819.88
  6. Step 6: Final answer
    x = 27,921.96

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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.