Home / 31,334.53-47,017.96-20,811.82

Finding the Fourth Proportional to 31,334.53, 47,017.96 and 20,811.82

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Solution

The fourth proportional to 31,334.53, 47,017.96 and 20,811.82 is: 31,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,334.53 : 47,017.96 = 20,811.82 : x
  2. Step 2: Convert to fraction form
    31,334.53/47,017.96 = 20,811.82/x
  3. Step 3: Cross multiply
    31,334.53x = 47,017.96 × 20,811.82
  4. Step 4: Simplify right side
    31,334.53x = 978,529,150.71
  5. Step 5: Solve for x
    x = 978,529,150.71/31,334.53
  6. Step 6: Final answer
    x = 31,228.46

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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.