Home / 21,831.58-32,719.97-9,336.91

Finding the Fourth Proportional to 21,831.58, 32,719.97 and 9,336.91

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Solution

The fourth proportional to 21,831.58, 32,719.97 and 9,336.91 is: 13,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,831.58 : 32,719.97 = 9,336.91 : x
  2. Step 2: Convert to fraction form
    21,831.58/32,719.97 = 9,336.91/x
  3. Step 3: Cross multiply
    21,831.58x = 32,719.97 × 9,336.91
  4. Step 4: Simplify right side
    21,831.58x = 305,503,415.09
  5. Step 5: Solve for x
    x = 305,503,415.09/21,831.58
  6. Step 6: Final answer
    x = 13,993.65

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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.