Home / 39,921.03-55,088.20-22,015.64

Finding the Fourth Proportional to 39,921.03, 55,088.20 and 22,015.64

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Solution

The fourth proportional to 39,921.03, 55,088.20 and 22,015.64 is: 30,380.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.03 : 55,088.20 = 22,015.64 : x
  2. Step 2: Convert to fraction form
    39,921.03/55,088.20 = 22,015.64/x
  3. Step 3: Cross multiply
    39,921.03x = 55,088.20 × 22,015.64
  4. Step 4: Simplify right side
    39,921.03x = 1,212,802,144.69
  5. Step 5: Solve for x
    x = 1,212,802,144.69/39,921.03
  6. Step 6: Final answer
    x = 30,380.03

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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.