Home / 39,919.08-55,087.25-22,013.76

Finding the Fourth Proportional to 39,919.08, 55,087.25 and 22,013.76

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Solution

The fourth proportional to 39,919.08, 55,087.25 and 22,013.76 is: 30,378.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.08 : 55,087.25 = 22,013.76 : x
  2. Step 2: Convert to fraction form
    39,919.08/55,087.25 = 22,013.76/x
  3. Step 3: Cross multiply
    39,919.08x = 55,087.25 × 22,013.76
  4. Step 4: Simplify right side
    39,919.08x = 1,212,677,390.49
  5. Step 5: Solve for x
    x = 1,212,677,390.49/39,919.08
  6. Step 6: Final answer
    x = 30,378.39

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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.