Home / 29,380.80-44,111.70-18,915.60

Finding the Fourth Proportional to 29,380.80, 44,111.70 and 18,915.60

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Solution

The fourth proportional to 29,380.80, 44,111.70 and 18,915.60 is: 28,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,380.80 : 44,111.70 = 18,915.60 : x
  2. Step 2: Convert to fraction form
    29,380.80/44,111.70 = 18,915.60/x
  3. Step 3: Cross multiply
    29,380.80x = 44,111.70 × 18,915.60
  4. Step 4: Simplify right side
    29,380.80x = 834,399,272.52
  5. Step 5: Solve for x
    x = 834,399,272.52/29,380.80
  6. Step 6: Final answer
    x = 28,399.47

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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.