Home / 21,553.54-29,738.07-12,603.24

Finding the Fourth Proportional to 21,553.54, 29,738.07 and 12,603.24

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Solution

The fourth proportional to 21,553.54, 29,738.07 and 12,603.24 is: 17,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.54 : 29,738.07 = 12,603.24 : x
  2. Step 2: Convert to fraction form
    21,553.54/29,738.07 = 12,603.24/x
  3. Step 3: Cross multiply
    21,553.54x = 29,738.07 × 12,603.24
  4. Step 4: Simplify right side
    21,553.54x = 374,796,033.35
  5. Step 5: Solve for x
    x = 374,796,033.35/21,553.54
  6. Step 6: Final answer
    x = 17,389.07

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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.