Home / 19,885.05-27,441.05-11,817.45

Finding the Fourth Proportional to 19,885.05, 27,441.05 and 11,817.45

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Solution

The fourth proportional to 19,885.05, 27,441.05 and 11,817.45 is: 16,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.05 : 27,441.05 = 11,817.45 : x
  2. Step 2: Convert to fraction form
    19,885.05/27,441.05 = 11,817.45/x
  3. Step 3: Cross multiply
    19,885.05x = 27,441.05 × 11,817.45
  4. Step 4: Simplify right side
    19,885.05x = 324,283,177.24
  5. Step 5: Solve for x
    x = 324,283,177.24/19,885.05
  6. Step 6: Final answer
    x = 16,307.89

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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.