Home / 29,680.80-44,521.20-18,621.60

Finding the Fourth Proportional to 29,680.80, 44,521.20 and 18,621.60

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Solution

The fourth proportional to 29,680.80, 44,521.20 and 18,621.60 is: 27,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,680.80 : 44,521.20 = 18,621.60 : x
  2. Step 2: Convert to fraction form
    29,680.80/44,521.20 = 18,621.60/x
  3. Step 3: Cross multiply
    29,680.80x = 44,521.20 × 18,621.60
  4. Step 4: Simplify right side
    29,680.80x = 829,055,977.92
  5. Step 5: Solve for x
    x = 829,055,977.92/29,680.80
  6. Step 6: Final answer
    x = 27,932.40

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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.