Home / 21,672.41-29,884.29-14,104.78

Finding the Fourth Proportional to 21,672.41, 29,884.29 and 14,104.78

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Solution

The fourth proportional to 21,672.41, 29,884.29 and 14,104.78 is: 19,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.41 : 29,884.29 = 14,104.78 : x
  2. Step 2: Convert to fraction form
    21,672.41/29,884.29 = 14,104.78/x
  3. Step 3: Cross multiply
    21,672.41x = 29,884.29 × 14,104.78
  4. Step 4: Simplify right side
    21,672.41x = 421,511,455.74
  5. Step 5: Solve for x
    x = 421,511,455.74/21,672.41
  6. Step 6: Final answer
    x = 19,449.22

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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.