Home / 20,200.39-27,876.50-11,248.67

Finding the Fourth Proportional to 20,200.39, 27,876.50 and 11,248.67

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Solution

The fourth proportional to 20,200.39, 27,876.50 and 11,248.67 is: 15,523.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.39 : 27,876.50 = 11,248.67 : x
  2. Step 2: Convert to fraction form
    20,200.39/27,876.50 = 11,248.67/x
  3. Step 3: Cross multiply
    20,200.39x = 27,876.50 × 11,248.67
  4. Step 4: Simplify right side
    20,200.39x = 313,573,668.16
  5. Step 5: Solve for x
    x = 313,573,668.16/20,200.39
  6. Step 6: Final answer
    x = 15,523.15

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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.