Home / 29,948.72-41,323.80-18,621.20

Finding the Fourth Proportional to 29,948.72, 41,323.80 and 18,621.20

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Solution

The fourth proportional to 29,948.72, 41,323.80 and 18,621.20 is: 25,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,948.72 : 41,323.80 = 18,621.20 : x
  2. Step 2: Convert to fraction form
    29,948.72/41,323.80 = 18,621.20/x
  3. Step 3: Cross multiply
    29,948.72x = 41,323.80 × 18,621.20
  4. Step 4: Simplify right side
    29,948.72x = 769,498,744.56
  5. Step 5: Solve for x
    x = 769,498,744.56/29,948.72
  6. Step 6: Final answer
    x = 25,693.88

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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.