Home / 39,981.08-55,174.74-22,077.21

Finding the Fourth Proportional to 39,981.08, 55,174.74 and 22,077.21

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Solution

The fourth proportional to 39,981.08, 55,174.74 and 22,077.21 is: 30,467.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.08 : 55,174.74 = 22,077.21 : x
  2. Step 2: Convert to fraction form
    39,981.08/55,174.74 = 22,077.21/x
  3. Step 3: Cross multiply
    39,981.08x = 55,174.74 × 22,077.21
  4. Step 4: Simplify right side
    39,981.08x = 1,218,104,321.68
  5. Step 5: Solve for x
    x = 1,218,104,321.68/39,981.08
  6. Step 6: Final answer
    x = 30,467.02

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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.