Home / 17,127.45-23,640.39-15,355.98

Finding the Fourth Proportional to 17,127.45, 23,640.39 and 15,355.98

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Solution

The fourth proportional to 17,127.45, 23,640.39 and 15,355.98 is: 21,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,127.45 : 23,640.39 = 15,355.98 : x
  2. Step 2: Convert to fraction form
    17,127.45/23,640.39 = 15,355.98/x
  3. Step 3: Cross multiply
    17,127.45x = 23,640.39 × 15,355.98
  4. Step 4: Simplify right side
    17,127.45x = 363,021,356.03
  5. Step 5: Solve for x
    x = 363,021,356.03/17,127.45
  6. Step 6: Final answer
    x = 21,195.30

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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.