Home / 21,627.88-29,844.98-12,553.49

Finding the Fourth Proportional to 21,627.88, 29,844.98 and 12,553.49

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Solution

The fourth proportional to 21,627.88, 29,844.98 and 12,553.49 is: 17,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.88 : 29,844.98 = 12,553.49 : x
  2. Step 2: Convert to fraction form
    21,627.88/29,844.98 = 12,553.49/x
  3. Step 3: Cross multiply
    21,627.88x = 29,844.98 × 12,553.49
  4. Step 4: Simplify right side
    21,627.88x = 374,658,657.98
  5. Step 5: Solve for x
    x = 374,658,657.98/21,627.88
  6. Step 6: Final answer
    x = 17,322.95

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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.