Home / 22,219.52-30,662.95-12,147.80

Finding the Fourth Proportional to 22,219.52, 30,662.95 and 12,147.80

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Solution

The fourth proportional to 22,219.52, 30,662.95 and 12,147.80 is: 16,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.52 : 30,662.95 = 12,147.80 : x
  2. Step 2: Convert to fraction form
    22,219.52/30,662.95 = 12,147.80/x
  3. Step 3: Cross multiply
    22,219.52x = 30,662.95 × 12,147.80
  4. Step 4: Simplify right side
    22,219.52x = 372,487,200.33
  5. Step 5: Solve for x
    x = 372,487,200.33/22,219.52
  6. Step 6: Final answer
    x = 16,763.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.