Home / 39,912.87-55,080.14-22,008.53

Finding the Fourth Proportional to 39,912.87, 55,080.14 and 22,008.53

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Solution

The fourth proportional to 39,912.87, 55,080.14 and 22,008.53 is: 30,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.87 : 55,080.14 = 22,008.53 : x
  2. Step 2: Convert to fraction form
    39,912.87/55,080.14 = 22,008.53/x
  3. Step 3: Cross multiply
    39,912.87x = 55,080.14 × 22,008.53
  4. Step 4: Simplify right side
    39,912.87x = 1,212,232,528.15
  5. Step 5: Solve for x
    x = 1,212,232,528.15/39,912.87
  6. Step 6: Final answer
    x = 30,371.97

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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.