Home / 19,578.73-27,006.35-11,615.31

Finding the Fourth Proportional to 19,578.73, 27,006.35 and 11,615.31

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Solution

The fourth proportional to 19,578.73, 27,006.35 and 11,615.31 is: 16,021.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.73 : 27,006.35 = 11,615.31 : x
  2. Step 2: Convert to fraction form
    19,578.73/27,006.35 = 11,615.31/x
  3. Step 3: Cross multiply
    19,578.73x = 27,006.35 × 11,615.31
  4. Step 4: Simplify right side
    19,578.73x = 313,687,223.77
  5. Step 5: Solve for x
    x = 313,687,223.77/19,578.73
  6. Step 6: Final answer
    x = 16,021.84

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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.