Home / 39,919.16-55,087.44-22,013.94

Finding the Fourth Proportional to 39,919.16, 55,087.44 and 22,013.94

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Solution

The fourth proportional to 39,919.16, 55,087.44 and 22,013.94 is: 30,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.16 : 55,087.44 = 22,013.94 : x
  2. Step 2: Convert to fraction form
    39,919.16/55,087.44 = 22,013.94/x
  3. Step 3: Cross multiply
    39,919.16x = 55,087.44 × 22,013.94
  4. Step 4: Simplify right side
    39,919.16x = 1,212,691,598.91
  5. Step 5: Solve for x
    x = 1,212,691,598.91/39,919.16
  6. Step 6: Final answer
    x = 30,378.69

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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.