Home / 20,212.14-27,892.69-11,259.55

Finding the Fourth Proportional to 20,212.14, 27,892.69 and 11,259.55

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Solution

The fourth proportional to 20,212.14, 27,892.69 and 11,259.55 is: 15,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.14 : 27,892.69 = 11,259.55 : x
  2. Step 2: Convert to fraction form
    20,212.14/27,892.69 = 11,259.55/x
  3. Step 3: Cross multiply
    20,212.14x = 27,892.69 × 11,259.55
  4. Step 4: Simplify right side
    20,212.14x = 314,059,137.69
  5. Step 5: Solve for x
    x = 314,059,137.69/20,212.14
  6. Step 6: Final answer
    x = 15,538.14

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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.