Home / 39,911.78-55,080.70-22,006.72

Finding the Fourth Proportional to 39,911.78, 55,080.70 and 22,006.72

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Solution

The fourth proportional to 39,911.78, 55,080.70 and 22,006.72 is: 30,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.78 : 55,080.70 = 22,006.72 : x
  2. Step 2: Convert to fraction form
    39,911.78/55,080.70 = 22,006.72/x
  3. Step 3: Cross multiply
    39,911.78x = 55,080.70 × 22,006.72
  4. Step 4: Simplify right side
    39,911.78x = 1,212,145,542.30
  5. Step 5: Solve for x
    x = 1,212,145,542.30/39,911.78
  6. Step 6: Final answer
    x = 30,370.62

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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.