Home / 19,680.20-27,158.58-11,296.52

Finding the Fourth Proportional to 19,680.20, 27,158.58 and 11,296.52

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Solution

The fourth proportional to 19,680.20, 27,158.58 and 11,296.52 is: 15,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.20 : 27,158.58 = 11,296.52 : x
  2. Step 2: Convert to fraction form
    19,680.20/27,158.58 = 11,296.52/x
  3. Step 3: Cross multiply
    19,680.20x = 27,158.58 × 11,296.52
  4. Step 4: Simplify right side
    19,680.20x = 306,797,442.14
  5. Step 5: Solve for x
    x = 306,797,442.14/19,680.20
  6. Step 6: Final answer
    x = 15,589.14

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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.