Home / 30,351.31-45,531.11-10,355.44

Finding the Fourth Proportional to 30,351.31, 45,531.11 and 10,355.44

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Solution

The fourth proportional to 30,351.31, 45,531.11 and 10,355.44 is: 15,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.31 : 45,531.11 = 10,355.44 : x
  2. Step 2: Convert to fraction form
    30,351.31/45,531.11 = 10,355.44/x
  3. Step 3: Cross multiply
    30,351.31x = 45,531.11 × 10,355.44
  4. Step 4: Simplify right side
    30,351.31x = 471,494,589.80
  5. Step 5: Solve for x
    x = 471,494,589.80/30,351.31
  6. Step 6: Final answer
    x = 15,534.57

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1.5x scale

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.