Home / 22,221.06-30,664.73-13,266.88

Finding the Fourth Proportional to 22,221.06, 30,664.73 and 13,266.88

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Solution

The fourth proportional to 22,221.06, 30,664.73 and 13,266.88 is: 18,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.06 : 30,664.73 = 13,266.88 : x
  2. Step 2: Convert to fraction form
    22,221.06/30,664.73 = 13,266.88/x
  3. Step 3: Cross multiply
    22,221.06x = 30,664.73 × 13,266.88
  4. Step 4: Simplify right side
    22,221.06x = 406,825,293.14
  5. Step 5: Solve for x
    x = 406,825,293.14/22,221.06
  6. Step 6: Final answer
    x = 18,308.10

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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.