Home / 39,910.88-55,080.30-22,009.40

Finding the Fourth Proportional to 39,910.88, 55,080.30 and 22,009.40

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Solution

The fourth proportional to 39,910.88, 55,080.30 and 22,009.40 is: 30,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.88 : 55,080.30 = 22,009.40 : x
  2. Step 2: Convert to fraction form
    39,910.88/55,080.30 = 22,009.40/x
  3. Step 3: Cross multiply
    39,910.88x = 55,080.30 × 22,009.40
  4. Step 4: Simplify right side
    39,910.88x = 1,212,284,354.82
  5. Step 5: Solve for x
    x = 1,212,284,354.82/39,910.88
  6. Step 6: Final answer
    x = 30,374.78

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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.