Home / 21,531.54-29,713.66-12,100.10

Finding the Fourth Proportional to 21,531.54, 29,713.66 and 12,100.10

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Solution

The fourth proportional to 21,531.54, 29,713.66 and 12,100.10 is: 16,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.54 : 29,713.66 = 12,100.10 : x
  2. Step 2: Convert to fraction form
    21,531.54/29,713.66 = 12,100.10/x
  3. Step 3: Cross multiply
    21,531.54x = 29,713.66 × 12,100.10
  4. Step 4: Simplify right side
    21,531.54x = 359,538,257.37
  5. Step 5: Solve for x
    x = 359,538,257.37/21,531.54
  6. Step 6: Final answer
    x = 16,698.21

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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.