Home / 21,627.88-29,847.22-12,552.55

Finding the Fourth Proportional to 21,627.88, 29,847.22 and 12,552.55

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Solution

The fourth proportional to 21,627.88, 29,847.22 and 12,552.55 is: 17,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.88 : 29,847.22 = 12,552.55 : x
  2. Step 2: Convert to fraction form
    21,627.88/29,847.22 = 12,552.55/x
  3. Step 3: Cross multiply
    21,627.88x = 29,847.22 × 12,552.55
  4. Step 4: Simplify right side
    21,627.88x = 374,658,721.41
  5. Step 5: Solve for x
    x = 374,658,721.41/21,627.88
  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.