Home / 27,928.29-41,872.85-13,129.59

Finding the Fourth Proportional to 27,928.29, 41,872.85 and 13,129.59

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Solution

The fourth proportional to 27,928.29, 41,872.85 and 13,129.59 is: 19,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.29 : 41,872.85 = 13,129.59 : x
  2. Step 2: Convert to fraction form
    27,928.29/41,872.85 = 13,129.59/x
  3. Step 3: Cross multiply
    27,928.29x = 41,872.85 × 13,129.59
  4. Step 4: Simplify right side
    27,928.29x = 549,773,493.24
  5. Step 5: Solve for x
    x = 549,773,493.24/27,928.29
  6. Step 6: Final answer
    x = 19,685.18

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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.