Home / 20,224.25-27,909.50-11,272.06

Finding the Fourth Proportional to 20,224.25, 27,909.50 and 11,272.06

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Solution

The fourth proportional to 20,224.25, 27,909.50 and 11,272.06 is: 15,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.25 : 27,909.50 = 11,272.06 : x
  2. Step 2: Convert to fraction form
    20,224.25/27,909.50 = 11,272.06/x
  3. Step 3: Cross multiply
    20,224.25x = 27,909.50 × 11,272.06
  4. Step 4: Simplify right side
    20,224.25x = 314,597,537.10
  5. Step 5: Solve for x
    x = 314,597,537.10/20,224.25
  6. Step 6: Final answer
    x = 15,555.46

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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.