Home / 39,995.64-55,193.66-21,846.38

Finding the Fourth Proportional to 39,995.64, 55,193.66 and 21,846.38

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Solution

The fourth proportional to 39,995.64, 55,193.66 and 21,846.38 is: 30,147.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,995.64 : 55,193.66 = 21,846.38 : x
  2. Step 2: Convert to fraction form
    39,995.64/55,193.66 = 21,846.38/x
  3. Step 3: Cross multiply
    39,995.64x = 55,193.66 × 21,846.38
  4. Step 4: Simplify right side
    39,995.64x = 1,205,781,477.35
  5. Step 5: Solve for x
    x = 1,205,781,477.35/39,995.64
  6. Step 6: Final answer
    x = 30,147.82

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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.