Home / 21,343.28-32,019.66-6,553.48

Finding the Fourth Proportional to 21,343.28, 32,019.66 and 6,553.48

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Solution

The fourth proportional to 21,343.28, 32,019.66 and 6,553.48 is: 9,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.28 : 32,019.66 = 6,553.48 : x
  2. Step 2: Convert to fraction form
    21,343.28/32,019.66 = 6,553.48/x
  3. Step 3: Cross multiply
    21,343.28x = 32,019.66 × 6,553.48
  4. Step 4: Simplify right side
    21,343.28x = 209,840,201.42
  5. Step 5: Solve for x
    x = 209,840,201.42/21,343.28
  6. Step 6: Final answer
    x = 9,831.68

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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.