Home / 39,811.45-54,933.53-22,812.43

Finding the Fourth Proportional to 39,811.45, 54,933.53 and 22,812.43

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Solution

The fourth proportional to 39,811.45, 54,933.53 and 22,812.43 is: 31,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.45 : 54,933.53 = 22,812.43 : x
  2. Step 2: Convert to fraction form
    39,811.45/54,933.53 = 22,812.43/x
  3. Step 3: Cross multiply
    39,811.45x = 54,933.53 × 22,812.43
  4. Step 4: Simplify right side
    39,811.45x = 1,253,166,919.05
  5. Step 5: Solve for x
    x = 1,253,166,919.05/39,811.45
  6. Step 6: Final answer
    x = 31,477.55

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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.