Home / 20,426.06-28,187.24-12,481.58

Finding the Fourth Proportional to 20,426.06, 28,187.24 and 12,481.58

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Solution

The fourth proportional to 20,426.06, 28,187.24 and 12,481.58 is: 17,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.06 : 28,187.24 = 12,481.58 : x
  2. Step 2: Convert to fraction form
    20,426.06/28,187.24 = 12,481.58/x
  3. Step 3: Cross multiply
    20,426.06x = 28,187.24 × 12,481.58
  4. Step 4: Simplify right side
    20,426.06x = 351,821,291.04
  5. Step 5: Solve for x
    x = 351,821,291.04/20,426.06
  6. Step 6: Final answer
    x = 17,224.14

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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.