Home / 19,538.38-26,961.20-11,579.32

Finding the Fourth Proportional to 19,538.38, 26,961.20 and 11,579.32

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Solution

The fourth proportional to 19,538.38, 26,961.20 and 11,579.32 is: 15,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.38 : 26,961.20 = 11,579.32 : x
  2. Step 2: Convert to fraction form
    19,538.38/26,961.20 = 11,579.32/x
  3. Step 3: Cross multiply
    19,538.38x = 26,961.20 × 11,579.32
  4. Step 4: Simplify right side
    19,538.38x = 312,192,362.38
  5. Step 5: Solve for x
    x = 312,192,362.38/19,538.38
  6. Step 6: Final answer
    x = 15,978.42

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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.