Home / 20,442.26-28,210.59-11,489.24

Finding the Fourth Proportional to 20,442.26, 28,210.59 and 11,489.24

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Solution

The fourth proportional to 20,442.26, 28,210.59 and 11,489.24 is: 15,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.26 : 28,210.59 = 11,489.24 : x
  2. Step 2: Convert to fraction form
    20,442.26/28,210.59 = 11,489.24/x
  3. Step 3: Cross multiply
    20,442.26x = 28,210.59 × 11,489.24
  4. Step 4: Simplify right side
    20,442.26x = 324,118,309.58
  5. Step 5: Solve for x
    x = 324,118,309.58/20,442.26
  6. Step 6: Final answer
    x = 15,855.31

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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.