Home / 39,355.70-54,338.09-31,835.15

Finding the Fourth Proportional to 39,355.70, 54,338.09 and 31,835.15

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Solution

The fourth proportional to 39,355.70, 54,338.09 and 31,835.15 is: 43,954.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,355.70 : 54,338.09 = 31,835.15 : x
  2. Step 2: Convert to fraction form
    39,355.70/54,338.09 = 31,835.15/x
  3. Step 3: Cross multiply
    39,355.70x = 54,338.09 × 31,835.15
  4. Step 4: Simplify right side
    39,355.70x = 1,729,861,245.86
  5. Step 5: Solve for x
    x = 1,729,861,245.86/39,355.70
  6. Step 6: Final answer
    x = 43,954.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.