Home / 39,916.16-55,083.04-22,011.92

Finding the Fourth Proportional to 39,916.16, 55,083.04 and 22,011.92

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Solution

The fourth proportional to 39,916.16, 55,083.04 and 22,011.92 is: 30,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,916.16 : 55,083.04 = 22,011.92 : x
  2. Step 2: Convert to fraction form
    39,916.16/55,083.04 = 22,011.92/x
  3. Step 3: Cross multiply
    39,916.16x = 55,083.04 × 22,011.92
  4. Step 4: Simplify right side
    39,916.16x = 1,212,483,469.84
  5. Step 5: Solve for x
    x = 1,212,483,469.84/39,916.16
  6. Step 6: Final answer
    x = 30,375.75

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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.