Home / 21,831.39-32,725.08-12,468.33

Finding the Fourth Proportional to 21,831.39, 32,725.08 and 12,468.33

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Solution

The fourth proportional to 21,831.39, 32,725.08 and 12,468.33 is: 18,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,831.39 : 32,725.08 = 12,468.33 : x
  2. Step 2: Convert to fraction form
    21,831.39/32,725.08 = 12,468.33/x
  3. Step 3: Cross multiply
    21,831.39x = 32,725.08 × 12,468.33
  4. Step 4: Simplify right side
    21,831.39x = 408,027,096.72
  5. Step 5: Solve for x
    x = 408,027,096.72/21,831.39
  6. Step 6: Final answer
    x = 18,689.93

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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.