Home / 39,940.92-55,118.79-22,037.20

Finding the Fourth Proportional to 39,940.92, 55,118.79 and 22,037.20

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Solution

The fourth proportional to 39,940.92, 55,118.79 and 22,037.20 is: 30,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.92 : 55,118.79 = 22,037.20 : x
  2. Step 2: Convert to fraction form
    39,940.92/55,118.79 = 22,037.20/x
  3. Step 3: Cross multiply
    39,940.92x = 55,118.79 × 22,037.20
  4. Step 4: Simplify right side
    39,940.92x = 1,214,663,661.19
  5. Step 5: Solve for x
    x = 1,214,663,661.19/39,940.92
  6. Step 6: Final answer
    x = 30,411.51

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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.