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Finding the Fourth Proportional to 20,185.00, 30,278.61 and 7,706.04

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Solution

The fourth proportional to 20,185.00, 30,278.61 and 7,706.04 is: 11,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.00 : 30,278.61 = 7,706.04 : x
  2. Step 2: Convert to fraction form
    20,185.00/30,278.61 = 7,706.04/x
  3. Step 3: Cross multiply
    20,185.00x = 30,278.61 × 7,706.04
  4. Step 4: Simplify right side
    20,185.00x = 233,328,066.26
  5. Step 5: Solve for x
    x = 233,328,066.26/20,185.00
  6. Step 6: Final answer
    x = 11,559.48

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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.