Home / 20,461.82-28,229.31-11,507.27

Finding the Fourth Proportional to 20,461.82, 28,229.31 and 11,507.27

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Solution

The fourth proportional to 20,461.82, 28,229.31 and 11,507.27 is: 15,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.82 : 28,229.31 = 11,507.27 : x
  2. Step 2: Convert to fraction form
    20,461.82/28,229.31 = 11,507.27/x
  3. Step 3: Cross multiply
    20,461.82x = 28,229.31 × 11,507.27
  4. Step 4: Simplify right side
    20,461.82x = 324,842,150.94
  5. Step 5: Solve for x
    x = 324,842,150.94/20,461.82
  6. Step 6: Final answer
    x = 15,875.53

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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.