Home / 20,002.72-27,601.68-11,617.60

Finding the Fourth Proportional to 20,002.72, 27,601.68 and 11,617.60

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Solution

The fourth proportional to 20,002.72, 27,601.68 and 11,617.60 is: 16,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.72 : 27,601.68 = 11,617.60 : x
  2. Step 2: Convert to fraction form
    20,002.72/27,601.68 = 11,617.60/x
  3. Step 3: Cross multiply
    20,002.72x = 27,601.68 × 11,617.60
  4. Step 4: Simplify right side
    20,002.72x = 320,665,277.57
  5. Step 5: Solve for x
    x = 320,665,277.57/20,002.72
  6. Step 6: Final answer
    x = 16,031.08

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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.