Home / 30,361.60-45,531.44-12,832.78

Finding the Fourth Proportional to 30,361.60, 45,531.44 and 12,832.78

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Solution

The fourth proportional to 30,361.60, 45,531.44 and 12,832.78 is: 19,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.60 : 45,531.44 = 12,832.78 : x
  2. Step 2: Convert to fraction form
    30,361.60/45,531.44 = 12,832.78/x
  3. Step 3: Cross multiply
    30,361.60x = 45,531.44 × 12,832.78
  4. Step 4: Simplify right side
    30,361.60x = 584,294,952.60
  5. Step 5: Solve for x
    x = 584,294,952.60/30,361.60
  6. Step 6: Final answer
    x = 19,244.54

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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.