Home / 28,218.07-38,933.05-22,231.16

Finding the Fourth Proportional to 28,218.07, 38,933.05 and 22,231.16

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Solution

The fourth proportional to 28,218.07, 38,933.05 and 22,231.16 is: 30,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.07 : 38,933.05 = 22,231.16 : x
  2. Step 2: Convert to fraction form
    28,218.07/38,933.05 = 22,231.16/x
  3. Step 3: Cross multiply
    28,218.07x = 38,933.05 × 22,231.16
  4. Step 4: Simplify right side
    28,218.07x = 865,526,863.84
  5. Step 5: Solve for x
    x = 865,526,863.84/28,218.07
  6. Step 6: Final answer
    x = 30,672.79

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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.