Home / 18,821.58-28,246.17-15,168.06

Finding the Fourth Proportional to 18,821.58, 28,246.17 and 15,168.06

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Solution

The fourth proportional to 18,821.58, 28,246.17 and 15,168.06 is: 22,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.58 : 28,246.17 = 15,168.06 : x
  2. Step 2: Convert to fraction form
    18,821.58/28,246.17 = 15,168.06/x
  3. Step 3: Cross multiply
    18,821.58x = 28,246.17 × 15,168.06
  4. Step 4: Simplify right side
    18,821.58x = 428,439,601.33
  5. Step 5: Solve for x
    x = 428,439,601.33/18,821.58
  6. Step 6: Final answer
    x = 22,763.21

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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.