Home / 31,334.74-47,018.26-20,812.04

Finding the Fourth Proportional to 31,334.74, 47,018.26 and 20,812.04

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Solution

The fourth proportional to 31,334.74, 47,018.26 and 20,812.04 is: 31,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,334.74 : 47,018.26 = 20,812.04 : x
  2. Step 2: Convert to fraction form
    31,334.74/47,018.26 = 20,812.04/x
  3. Step 3: Cross multiply
    31,334.74x = 47,018.26 × 20,812.04
  4. Step 4: Simplify right side
    31,334.74x = 978,545,845.83
  5. Step 5: Solve for x
    x = 978,545,845.83/31,334.74
  6. Step 6: Final answer
    x = 31,228.79

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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.