Home / 19,656-27,125.89-11,272.50

Finding the Fourth Proportional to 19,656, 27,125.89 and 11,272.50

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Solution

The fourth proportional to 19,656, 27,125.89 and 11,272.50 is: 15,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656 : 27,125.89 = 11,272.50 : x
  2. Step 2: Convert to fraction form
    19,656/27,125.89 = 11,272.50/x
  3. Step 3: Cross multiply
    19,656x = 27,125.89 × 11,272.50
  4. Step 4: Simplify right side
    19,656x = 305,776,566.84
  5. Step 5: Solve for x
    x = 305,776,566.84/19,656
  6. Step 6: Final answer
    x = 15,556.40

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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.