Home / 39,920.04-55,089.92-22,016.21

Finding the Fourth Proportional to 39,920.04, 55,089.92 and 22,016.21

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Solution

The fourth proportional to 39,920.04, 55,089.92 and 22,016.21 is: 30,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.04 : 55,089.92 = 22,016.21 : x
  2. Step 2: Convert to fraction form
    39,920.04/55,089.92 = 22,016.21/x
  3. Step 3: Cross multiply
    39,920.04x = 55,089.92 × 22,016.21
  4. Step 4: Simplify right side
    39,920.04x = 1,212,871,027.19
  5. Step 5: Solve for x
    x = 1,212,871,027.19/39,920.04
  6. Step 6: Final answer
    x = 30,382.51

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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.