Home / 39,884.27-55,040.39-21,735.13

Finding the Fourth Proportional to 39,884.27, 55,040.39 and 21,735.13

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Solution

The fourth proportional to 39,884.27, 55,040.39 and 21,735.13 is: 29,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.27 : 55,040.39 = 21,735.13 : x
  2. Step 2: Convert to fraction form
    39,884.27/55,040.39 = 21,735.13/x
  3. Step 3: Cross multiply
    39,884.27x = 55,040.39 × 21,735.13
  4. Step 4: Simplify right side
    39,884.27x = 1,196,309,754.40
  5. Step 5: Solve for x
    x = 1,196,309,754.40/39,884.27
  6. Step 6: Final answer
    x = 29,994.53

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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.