Home / 21,965.38-33,108.48-20,095.36

Finding the Fourth Proportional to 21,965.38, 33,108.48 and 20,095.36

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Solution

The fourth proportional to 21,965.38, 33,108.48 and 20,095.36 is: 30,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.38 : 33,108.48 = 20,095.36 : x
  2. Step 2: Convert to fraction form
    21,965.38/33,108.48 = 20,095.36/x
  3. Step 3: Cross multiply
    21,965.38x = 33,108.48 × 20,095.36
  4. Step 4: Simplify right side
    21,965.38x = 665,326,724.18
  5. Step 5: Solve for x
    x = 665,326,724.18/21,965.38
  6. Step 6: Final answer
    x = 30,289.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.