Home / 39,912.68-55,079.86-22,008.32

Finding the Fourth Proportional to 39,912.68, 55,079.86 and 22,008.32

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Solution

The fourth proportional to 39,912.68, 55,079.86 and 22,008.32 is: 30,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.68 : 55,079.86 = 22,008.32 : x
  2. Step 2: Convert to fraction form
    39,912.68/55,079.86 = 22,008.32/x
  3. Step 3: Cross multiply
    39,912.68x = 55,079.86 × 22,008.32
  4. Step 4: Simplify right side
    39,912.68x = 1,212,215,184.44
  5. Step 5: Solve for x
    x = 1,212,215,184.44/39,912.68
  6. Step 6: Final answer
    x = 30,371.68

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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.