Home / 27,109.68-40,636.44-13,932.72

Finding the Fourth Proportional to 27,109.68, 40,636.44 and 13,932.72

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Solution

The fourth proportional to 27,109.68, 40,636.44 and 13,932.72 is: 20,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,109.68 : 40,636.44 = 13,932.72 : x
  2. Step 2: Convert to fraction form
    27,109.68/40,636.44 = 13,932.72/x
  3. Step 3: Cross multiply
    27,109.68x = 40,636.44 × 13,932.72
  4. Step 4: Simplify right side
    27,109.68x = 566,176,140.32
  5. Step 5: Solve for x
    x = 566,176,140.32/27,109.68
  6. Step 6: Final answer
    x = 20,884.65

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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.