Home / 39,998.42-55,197.84-21,849.39

Finding the Fourth Proportional to 39,998.42, 55,197.84 and 21,849.39

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Solution

The fourth proportional to 39,998.42, 55,197.84 and 21,849.39 is: 30,152.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.42 : 55,197.84 = 21,849.39 : x
  2. Step 2: Convert to fraction form
    39,998.42/55,197.84 = 21,849.39/x
  3. Step 3: Cross multiply
    39,998.42x = 55,197.84 × 21,849.39
  4. Step 4: Simplify right side
    39,998.42x = 1,206,039,133.32
  5. Step 5: Solve for x
    x = 1,206,039,133.32/39,998.42
  6. Step 6: Final answer
    x = 30,152.17

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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.