Home / 20,523.60-30,781.44-6,669.36

Finding the Fourth Proportional to 20,523.60, 30,781.44 and 6,669.36

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Solution

The fourth proportional to 20,523.60, 30,781.44 and 6,669.36 is: 10,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.60 : 30,781.44 = 6,669.36 : x
  2. Step 2: Convert to fraction form
    20,523.60/30,781.44 = 6,669.36/x
  3. Step 3: Cross multiply
    20,523.60x = 30,781.44 × 6,669.36
  4. Step 4: Simplify right side
    20,523.60x = 205,292,504.68
  5. Step 5: Solve for x
    x = 205,292,504.68/20,523.60
  6. Step 6: Final answer
    x = 10,002.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.