Home / 20,418.04-30,627.24-5,626.63

Finding the Fourth Proportional to 20,418.04, 30,627.24 and 5,626.63

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Solution

The fourth proportional to 20,418.04, 30,627.24 and 5,626.63 is: 8,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.04 : 30,627.24 = 5,626.63 : x
  2. Step 2: Convert to fraction form
    20,418.04/30,627.24 = 5,626.63/x
  3. Step 3: Cross multiply
    20,418.04x = 30,627.24 × 5,626.63
  4. Step 4: Simplify right side
    20,418.04x = 172,328,147.40
  5. Step 5: Solve for x
    x = 172,328,147.40/20,418.04
  6. Step 6: Final answer
    x = 8,439.99

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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.