Home / 21,451.35-29,577.11-18,462.05

Finding the Fourth Proportional to 21,451.35, 29,577.11 and 18,462.05

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Solution

The fourth proportional to 21,451.35, 29,577.11 and 18,462.05 is: 25,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.35 : 29,577.11 = 18,462.05 : x
  2. Step 2: Convert to fraction form
    21,451.35/29,577.11 = 18,462.05/x
  3. Step 3: Cross multiply
    21,451.35x = 29,577.11 × 18,462.05
  4. Step 4: Simplify right side
    21,451.35x = 546,053,843.48
  5. Step 5: Solve for x
    x = 546,053,843.48/21,451.35
  6. Step 6: Final answer
    x = 25,455.45

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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.