Home / 30,253.31-45,380.19-10,531.82

Finding the Fourth Proportional to 30,253.31, 45,380.19 and 10,531.82

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Solution

The fourth proportional to 30,253.31, 45,380.19 and 10,531.82 is: 15,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,253.31 : 45,380.19 = 10,531.82 : x
  2. Step 2: Convert to fraction form
    30,253.31/45,380.19 = 10,531.82/x
  3. Step 3: Cross multiply
    30,253.31x = 45,380.19 × 10,531.82
  4. Step 4: Simplify right side
    30,253.31x = 477,935,992.65
  5. Step 5: Solve for x
    x = 477,935,992.65/30,253.31
  6. Step 6: Final answer
    x = 15,797.81

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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.