Home / 19,902.20-27,464.72-10,949.16

Finding the Fourth Proportional to 19,902.20, 27,464.72 and 10,949.16

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Solution

The fourth proportional to 19,902.20, 27,464.72 and 10,949.16 is: 15,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.20 : 27,464.72 = 10,949.16 : x
  2. Step 2: Convert to fraction form
    19,902.20/27,464.72 = 10,949.16/x
  3. Step 3: Cross multiply
    19,902.20x = 27,464.72 × 10,949.16
  4. Step 4: Simplify right side
    19,902.20x = 300,715,613.64
  5. Step 5: Solve for x
    x = 300,715,613.64/19,902.20
  6. Step 6: Final answer
    x = 15,109.67

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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.