Home / 20,185.82-30,278.73-9,653.35

Finding the Fourth Proportional to 20,185.82, 30,278.73 and 9,653.35

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Solution

The fourth proportional to 20,185.82, 30,278.73 and 9,653.35 is: 14,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.82 : 30,278.73 = 9,653.35 : x
  2. Step 2: Convert to fraction form
    20,185.82/30,278.73 = 9,653.35/x
  3. Step 3: Cross multiply
    20,185.82x = 30,278.73 × 9,653.35
  4. Step 4: Simplify right side
    20,185.82x = 292,291,026.85
  5. Step 5: Solve for x
    x = 292,291,026.85/20,185.82
  6. Step 6: Final answer
    x = 14,480.02

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.