Home / 20,160.18-27,819.47-11,207.14

Finding the Fourth Proportional to 20,160.18, 27,819.47 and 11,207.14

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Solution

The fourth proportional to 20,160.18, 27,819.47 and 11,207.14 is: 15,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.18 : 27,819.47 = 11,207.14 : x
  2. Step 2: Convert to fraction form
    20,160.18/27,819.47 = 11,207.14/x
  3. Step 3: Cross multiply
    20,160.18x = 27,819.47 × 11,207.14
  4. Step 4: Simplify right side
    20,160.18x = 311,776,653.48
  5. Step 5: Solve for x
    x = 311,776,653.48/20,160.18
  6. Step 6: Final answer
    x = 15,464.97

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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.