Home / 20,040.76-27,667.38-12,085

Finding the Fourth Proportional to 20,040.76, 27,667.38 and 12,085

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Solution

The fourth proportional to 20,040.76, 27,667.38 and 12,085 is: 16,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.76 : 27,667.38 = 12,085 : x
  2. Step 2: Convert to fraction form
    20,040.76/27,667.38 = 12,085/x
  3. Step 3: Cross multiply
    20,040.76x = 27,667.38 × 12,085
  4. Step 4: Simplify right side
    20,040.76x = 334,360,287.30
  5. Step 5: Solve for x
    x = 334,360,287.30/20,040.76
  6. Step 6: Final answer
    x = 16,684.01

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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.