Home / 20,212.68-27,892.26-11,259.72

Finding the Fourth Proportional to 20,212.68, 27,892.26 and 11,259.72

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Solution

The fourth proportional to 20,212.68, 27,892.26 and 11,259.72 is: 15,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.68 : 27,892.26 = 11,259.72 : x
  2. Step 2: Convert to fraction form
    20,212.68/27,892.26 = 11,259.72/x
  3. Step 3: Cross multiply
    20,212.68x = 27,892.26 × 11,259.72
  4. Step 4: Simplify right side
    20,212.68x = 314,059,037.77
  5. Step 5: Solve for x
    x = 314,059,037.77/20,212.68
  6. Step 6: Final answer
    x = 15,537.72

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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.