Home / 20,581.26-30,860.22-6,538.56

Finding the Fourth Proportional to 20,581.26, 30,860.22 and 6,538.56

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Solution

The fourth proportional to 20,581.26, 30,860.22 and 6,538.56 is: 9,804.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.26 : 30,860.22 = 6,538.56 : x
  2. Step 2: Convert to fraction form
    20,581.26/30,860.22 = 6,538.56/x
  3. Step 3: Cross multiply
    20,581.26x = 30,860.22 × 6,538.56
  4. Step 4: Simplify right side
    20,581.26x = 201,781,400.08
  5. Step 5: Solve for x
    x = 201,781,400.08/20,581.26
  6. Step 6: Final answer
    x = 9,804.13

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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.