Home / 19,972.92-27,542.92-15,495.03

Finding the Fourth Proportional to 19,972.92, 27,542.92 and 15,495.03

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Solution

The fourth proportional to 19,972.92, 27,542.92 and 15,495.03 is: 21,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.92 : 27,542.92 = 15,495.03 : x
  2. Step 2: Convert to fraction form
    19,972.92/27,542.92 = 15,495.03/x
  3. Step 3: Cross multiply
    19,972.92x = 27,542.92 × 15,495.03
  4. Step 4: Simplify right side
    19,972.92x = 426,778,371.69
  5. Step 5: Solve for x
    x = 426,778,371.69/19,972.92
  6. Step 6: Final answer
    x = 21,367.85

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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.