Home / 19,831.71-29,751.51-6,687.84

Finding the Fourth Proportional to 19,831.71, 29,751.51 and 6,687.84

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Solution

The fourth proportional to 19,831.71, 29,751.51 and 6,687.84 is: 10,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.71 : 29,751.51 = 6,687.84 : x
  2. Step 2: Convert to fraction form
    19,831.71/29,751.51 = 6,687.84/x
  3. Step 3: Cross multiply
    19,831.71x = 29,751.51 × 6,687.84
  4. Step 4: Simplify right side
    19,831.71x = 198,973,338.64
  5. Step 5: Solve for x
    x = 198,973,338.64/19,831.71
  6. Step 6: Final answer
    x = 10,033.09

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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.