Home / 22,218.33-30,661.67-13,266.62

Finding the Fourth Proportional to 22,218.33, 30,661.67 and 13,266.62

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Solution

The fourth proportional to 22,218.33, 30,661.67 and 13,266.62 is: 18,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.33 : 30,661.67 = 13,266.62 : x
  2. Step 2: Convert to fraction form
    22,218.33/30,661.67 = 13,266.62/x
  3. Step 3: Cross multiply
    22,218.33x = 30,661.67 × 13,266.62
  4. Step 4: Simplify right side
    22,218.33x = 406,776,724.46
  5. Step 5: Solve for x
    x = 406,776,724.46/22,218.33
  6. Step 6: Final answer
    x = 18,308.16

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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.