Home / 20,219.61-27,902.69-11,266.92

Finding the Fourth Proportional to 20,219.61, 27,902.69 and 11,266.92

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Solution

The fourth proportional to 20,219.61, 27,902.69 and 11,266.92 is: 15,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.61 : 27,902.69 = 11,266.92 : x
  2. Step 2: Convert to fraction form
    20,219.61/27,902.69 = 11,266.92/x
  3. Step 3: Cross multiply
    20,219.61x = 27,902.69 × 11,266.92
  4. Step 4: Simplify right side
    20,219.61x = 314,377,319.68
  5. Step 5: Solve for x
    x = 314,377,319.68/20,219.61
  6. Step 6: Final answer
    x = 15,548.14

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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.