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Finding the Fourth Proportional to 20,659.95, 30,994.28 and 10,796.58

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Solution

The fourth proportional to 20,659.95, 30,994.28 and 10,796.58 is: 16,197.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.95 : 30,994.28 = 10,796.58 : x
  2. Step 2: Convert to fraction form
    20,659.95/30,994.28 = 10,796.58/x
  3. Step 3: Cross multiply
    20,659.95x = 30,994.28 × 10,796.58
  4. Step 4: Simplify right side
    20,659.95x = 334,632,169.58
  5. Step 5: Solve for x
    x = 334,632,169.58/20,659.95
  6. Step 6: Final answer
    x = 16,197.14

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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.