Home / 20,069.96-27,697.33-11,117.28

Finding the Fourth Proportional to 20,069.96, 27,697.33 and 11,117.28

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Solution

The fourth proportional to 20,069.96, 27,697.33 and 11,117.28 is: 15,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.96 : 27,697.33 = 11,117.28 : x
  2. Step 2: Convert to fraction form
    20,069.96/27,697.33 = 11,117.28/x
  3. Step 3: Cross multiply
    20,069.96x = 27,697.33 × 11,117.28
  4. Step 4: Simplify right side
    20,069.96x = 307,919,028.09
  5. Step 5: Solve for x
    x = 307,919,028.09/20,069.96
  6. Step 6: Final answer
    x = 15,342.28

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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.