Home / 20,212.11-27,892.29-11,259.60

Finding the Fourth Proportional to 20,212.11, 27,892.29 and 11,259.60

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Solution

The fourth proportional to 20,212.11, 27,892.29 and 11,259.60 is: 15,538.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.11 : 27,892.29 = 11,259.60 : x
  2. Step 2: Convert to fraction form
    20,212.11/27,892.29 = 11,259.60/x
  3. Step 3: Cross multiply
    20,212.11x = 27,892.29 × 11,259.60
  4. Step 4: Simplify right side
    20,212.11x = 314,056,028.48
  5. Step 5: Solve for x
    x = 314,056,028.48/20,212.11
  6. Step 6: Final answer
    x = 15,538.01

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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.