Home / 21,619.23-32,422.35-6,831.87

Finding the Fourth Proportional to 21,619.23, 32,422.35 and 6,831.87

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Solution

The fourth proportional to 21,619.23, 32,422.35 and 6,831.87 is: 10,245.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.23 : 32,422.35 = 6,831.87 : x
  2. Step 2: Convert to fraction form
    21,619.23/32,422.35 = 6,831.87/x
  3. Step 3: Cross multiply
    21,619.23x = 32,422.35 × 6,831.87
  4. Step 4: Simplify right side
    21,619.23x = 221,505,280.29
  5. Step 5: Solve for x
    x = 221,505,280.29/21,619.23
  6. Step 6: Final answer
    x = 10,245.75

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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.