Home / 20,682.86-28,542.96-11,252.06

Finding the Fourth Proportional to 20,682.86, 28,542.96 and 11,252.06

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Solution

The fourth proportional to 20,682.86, 28,542.96 and 11,252.06 is: 15,528.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.86 : 28,542.96 = 11,252.06 : x
  2. Step 2: Convert to fraction form
    20,682.86/28,542.96 = 11,252.06/x
  3. Step 3: Cross multiply
    20,682.86x = 28,542.96 × 11,252.06
  4. Step 4: Simplify right side
    20,682.86x = 321,167,098.50
  5. Step 5: Solve for x
    x = 321,167,098.50/20,682.86
  6. Step 6: Final answer
    x = 15,528.18

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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.