Home / 20,849.01-31,282.43-13,831.49

Finding the Fourth Proportional to 20,849.01, 31,282.43 and 13,831.49

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Solution

The fourth proportional to 20,849.01, 31,282.43 and 13,831.49 is: 20,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.01 : 31,282.43 = 13,831.49 : x
  2. Step 2: Convert to fraction form
    20,849.01/31,282.43 = 13,831.49/x
  3. Step 3: Cross multiply
    20,849.01x = 31,282.43 × 13,831.49
  4. Step 4: Simplify right side
    20,849.01x = 432,682,392.15
  5. Step 5: Solve for x
    x = 432,682,392.15/20,849.01
  6. Step 6: Final answer
    x = 20,753.14

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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.