Home / 21,450.11-29,602.25-11,891.02

Finding the Fourth Proportional to 21,450.11, 29,602.25 and 11,891.02

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Solution

The fourth proportional to 21,450.11, 29,602.25 and 11,891.02 is: 16,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.11 : 29,602.25 = 11,891.02 : x
  2. Step 2: Convert to fraction form
    21,450.11/29,602.25 = 11,891.02/x
  3. Step 3: Cross multiply
    21,450.11x = 29,602.25 × 11,891.02
  4. Step 4: Simplify right side
    21,450.11x = 352,000,946.80
  5. Step 5: Solve for x
    x = 352,000,946.80/21,450.11
  6. Step 6: Final answer
    x = 16,410.22

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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.