Home / 21,777.96-32,673.28-6,986.56

Finding the Fourth Proportional to 21,777.96, 32,673.28 and 6,986.56

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Solution

The fourth proportional to 21,777.96, 32,673.28 and 6,986.56 is: 10,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.96 : 32,673.28 = 6,986.56 : x
  2. Step 2: Convert to fraction form
    21,777.96/32,673.28 = 6,986.56/x
  3. Step 3: Cross multiply
    21,777.96x = 32,673.28 × 6,986.56
  4. Step 4: Simplify right side
    21,777.96x = 228,273,831.12
  5. Step 5: Solve for x
    x = 228,273,831.12/21,777.96
  6. Step 6: Final answer
    x = 10,481.87

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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.