Home / 19,770.45-27,282.42-11,817.06

Finding the Fourth Proportional to 19,770.45, 27,282.42 and 11,817.06

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Solution

The fourth proportional to 19,770.45, 27,282.42 and 11,817.06 is: 16,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.45 : 27,282.42 = 11,817.06 : x
  2. Step 2: Convert to fraction form
    19,770.45/27,282.42 = 11,817.06/x
  3. Step 3: Cross multiply
    19,770.45x = 27,282.42 × 11,817.06
  4. Step 4: Simplify right side
    19,770.45x = 322,397,994.09
  5. Step 5: Solve for x
    x = 322,397,994.09/19,770.45
  6. Step 6: Final answer
    x = 16,307.06

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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.