Home / 29,870.28-41,203.80-18,672.84

Finding the Fourth Proportional to 29,870.28, 41,203.80 and 18,672.84

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Solution

The fourth proportional to 29,870.28, 41,203.80 and 18,672.84 is: 25,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,870.28 : 41,203.80 = 18,672.84 : x
  2. Step 2: Convert to fraction form
    29,870.28/41,203.80 = 18,672.84/x
  3. Step 3: Cross multiply
    29,870.28x = 41,203.80 × 18,672.84
  4. Step 4: Simplify right side
    29,870.28x = 769,391,964.79
  5. Step 5: Solve for x
    x = 769,391,964.79/29,870.28
  6. Step 6: Final answer
    x = 25,757.78

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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.