Home / 31,716.35-47,569.56-13,943.07

Finding the Fourth Proportional to 31,716.35, 47,569.56 and 13,943.07

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Solution

The fourth proportional to 31,716.35, 47,569.56 and 13,943.07 is: 20,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.35 : 47,569.56 = 13,943.07 : x
  2. Step 2: Convert to fraction form
    31,716.35/47,569.56 = 13,943.07/x
  3. Step 3: Cross multiply
    31,716.35x = 47,569.56 × 13,943.07
  4. Step 4: Simplify right side
    31,716.35x = 663,265,704.95
  5. Step 5: Solve for x
    x = 663,265,704.95/31,716.35
  6. Step 6: Final answer
    x = 20,912.43

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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.