Home / 20,219.22-27,902.34-11,266.56

Finding the Fourth Proportional to 20,219.22, 27,902.34 and 11,266.56

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Solution

The fourth proportional to 20,219.22, 27,902.34 and 11,266.56 is: 15,547.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.22 : 27,902.34 = 11,266.56 : x
  2. Step 2: Convert to fraction form
    20,219.22/27,902.34 = 11,266.56/x
  3. Step 3: Cross multiply
    20,219.22x = 27,902.34 × 11,266.56
  4. Step 4: Simplify right side
    20,219.22x = 314,363,387.75
  5. Step 5: Solve for x
    x = 314,363,387.75/20,219.22
  6. Step 6: Final answer
    x = 15,547.75

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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.