Home / 22,182.20-30,618.78-13,232.60

Finding the Fourth Proportional to 22,182.20, 30,618.78 and 13,232.60

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Solution

The fourth proportional to 22,182.20, 30,618.78 and 13,232.60 is: 18,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182.20 : 30,618.78 = 13,232.60 : x
  2. Step 2: Convert to fraction form
    22,182.20/30,618.78 = 13,232.60/x
  3. Step 3: Cross multiply
    22,182.20x = 30,618.78 × 13,232.60
  4. Step 4: Simplify right side
    22,182.20x = 405,166,068.23
  5. Step 5: Solve for x
    x = 405,166,068.23/22,182.20
  6. Step 6: Final answer
    x = 18,265.37

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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.