Home / 39,884.06-55,039.76-21,734.74

Finding the Fourth Proportional to 39,884.06, 55,039.76 and 21,734.74

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Solution

The fourth proportional to 39,884.06, 55,039.76 and 21,734.74 is: 29,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.06 : 55,039.76 = 21,734.74 : x
  2. Step 2: Convert to fraction form
    39,884.06/55,039.76 = 21,734.74/x
  3. Step 3: Cross multiply
    39,884.06x = 55,039.76 × 21,734.74
  4. Step 4: Simplify right side
    39,884.06x = 1,196,274,873.26
  5. Step 5: Solve for x
    x = 1,196,274,873.26/39,884.06
  6. Step 6: Final answer
    x = 29,993.81

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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.