Home / 20,620.52-30,952.66-18,263.90

Finding the Fourth Proportional to 20,620.52, 30,952.66 and 18,263.90

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Solution

The fourth proportional to 20,620.52, 30,952.66 and 18,263.90 is: 27,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.52 : 30,952.66 = 18,263.90 : x
  2. Step 2: Convert to fraction form
    20,620.52/30,952.66 = 18,263.90/x
  3. Step 3: Cross multiply
    20,620.52x = 30,952.66 × 18,263.90
  4. Step 4: Simplify right side
    20,620.52x = 565,316,195.65
  5. Step 5: Solve for x
    x = 565,316,195.65/20,620.52
  6. Step 6: Final answer
    x = 27,415.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.