Home / 21,458.40-32,167.44-11,067.36

Finding the Fourth Proportional to 21,458.40, 32,167.44 and 11,067.36

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Solution

The fourth proportional to 21,458.40, 32,167.44 and 11,067.36 is: 16,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.40 : 32,167.44 = 11,067.36 : x
  2. Step 2: Convert to fraction form
    21,458.40/32,167.44 = 11,067.36/x
  3. Step 3: Cross multiply
    21,458.40x = 32,167.44 × 11,067.36
  4. Step 4: Simplify right side
    21,458.40x = 356,008,638.76
  5. Step 5: Solve for x
    x = 356,008,638.76/21,458.40
  6. Step 6: Final answer
    x = 16,590.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.