Home / 20,165.10-27,827.87-11,213.52

Finding the Fourth Proportional to 20,165.10, 27,827.87 and 11,213.52

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Solution

The fourth proportional to 20,165.10, 27,827.87 and 11,213.52 is: 15,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.10 : 27,827.87 = 11,213.52 : x
  2. Step 2: Convert to fraction form
    20,165.10/27,827.87 = 11,213.52/x
  3. Step 3: Cross multiply
    20,165.10x = 27,827.87 × 11,213.52
  4. Step 4: Simplify right side
    20,165.10x = 312,048,320.73
  5. Step 5: Solve for x
    x = 312,048,320.73/20,165.10
  6. Step 6: Final answer
    x = 15,474.67

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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.