Home / 22,087.83-30,439.22-15,789.27

Finding the Fourth Proportional to 22,087.83, 30,439.22 and 15,789.27

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Solution

The fourth proportional to 22,087.83, 30,439.22 and 15,789.27 is: 21,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.83 : 30,439.22 = 15,789.27 : x
  2. Step 2: Convert to fraction form
    22,087.83/30,439.22 = 15,789.27/x
  3. Step 3: Cross multiply
    22,087.83x = 30,439.22 × 15,789.27
  4. Step 4: Simplify right side
    22,087.83x = 480,612,984.22
  5. Step 5: Solve for x
    x = 480,612,984.22/22,087.83
  6. Step 6: Final answer
    x = 21,759.18

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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.