Home / 39,884.68-55,040.64-21,735.37

Finding the Fourth Proportional to 39,884.68, 55,040.64 and 21,735.37

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Solution

The fourth proportional to 39,884.68, 55,040.64 and 21,735.37 is: 29,994.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.68 : 55,040.64 = 21,735.37 : x
  2. Step 2: Convert to fraction form
    39,884.68/55,040.64 = 21,735.37/x
  3. Step 3: Cross multiply
    39,884.68x = 55,040.64 × 21,735.37
  4. Step 4: Simplify right side
    39,884.68x = 1,196,328,675.44
  5. Step 5: Solve for x
    x = 1,196,328,675.44/39,884.68
  6. Step 6: Final answer
    x = 29,994.69

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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.