Home / 39,917.75-55,086.85-22,013.40

Finding the Fourth Proportional to 39,917.75, 55,086.85 and 22,013.40

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Solution

The fourth proportional to 39,917.75, 55,086.85 and 22,013.40 is: 30,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,917.75 : 55,086.85 = 22,013.40 : x
  2. Step 2: Convert to fraction form
    39,917.75/55,086.85 = 22,013.40/x
  3. Step 3: Cross multiply
    39,917.75x = 55,086.85 × 22,013.40
  4. Step 4: Simplify right side
    39,917.75x = 1,212,649,097.88
  5. Step 5: Solve for x
    x = 1,212,649,097.88/39,917.75
  6. Step 6: Final answer
    x = 30,378.70

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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.