Home / 20,664.86-28,517.74-11,233.43

Finding the Fourth Proportional to 20,664.86, 28,517.74 and 11,233.43

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Solution

The fourth proportional to 20,664.86, 28,517.74 and 11,233.43 is: 15,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.86 : 28,517.74 = 11,233.43 : x
  2. Step 2: Convert to fraction form
    20,664.86/28,517.74 = 11,233.43/x
  3. Step 3: Cross multiply
    20,664.86x = 28,517.74 × 11,233.43
  4. Step 4: Simplify right side
    20,664.86x = 320,351,892.11
  5. Step 5: Solve for x
    x = 320,351,892.11/20,664.86
  6. Step 6: Final answer
    x = 15,502.25

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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.