Home / 19,831.35-29,739.31-9,963.75

Finding the Fourth Proportional to 19,831.35, 29,739.31 and 9,963.75

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Solution

The fourth proportional to 19,831.35, 29,739.31 and 9,963.75 is: 14,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.35 : 29,739.31 = 9,963.75 : x
  2. Step 2: Convert to fraction form
    19,831.35/29,739.31 = 9,963.75/x
  3. Step 3: Cross multiply
    19,831.35x = 29,739.31 × 9,963.75
  4. Step 4: Simplify right side
    19,831.35x = 296,315,025.10
  5. Step 5: Solve for x
    x = 296,315,025.10/19,831.35
  6. Step 6: Final answer
    x = 14,941.75

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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.