Home / 39,811.20-54,933.18-22,812.18

Finding the Fourth Proportional to 39,811.20, 54,933.18 and 22,812.18

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Solution

The fourth proportional to 39,811.20, 54,933.18 and 22,812.18 is: 31,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.20 : 54,933.18 = 22,812.18 : x
  2. Step 2: Convert to fraction form
    39,811.20/54,933.18 = 22,812.18/x
  3. Step 3: Cross multiply
    39,811.20x = 54,933.18 × 22,812.18
  4. Step 4: Simplify right side
    39,811.20x = 1,253,145,315.47
  5. Step 5: Solve for x
    x = 1,253,145,315.47/39,811.20
  6. Step 6: Final answer
    x = 31,477.21

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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.