Home / 21,367,421.75-29,487,067.94-11,577,858.35

Finding the Fourth Proportional to 21,367,421.75, 29,487,067.94 and 11,577,858.35

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Solution

The fourth proportional to 21,367,421.75, 29,487,067.94 and 11,577,858.35 is: 15,977,458.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367,421.75 : 29,487,067.94 = 11,577,858.35 : x
  2. Step 2: Convert to fraction form
    21,367,421.75/29,487,067.94 = 11,577,858.35/x
  3. Step 3: Cross multiply
    21,367,421.75x = 29,487,067.94 × 11,577,858.35
  4. Step 4: Simplify right side
    21,367,421.75x = 341,397,095,766,146.31
  5. Step 5: Solve for x
    x = 341,397,095,766,146.31/21,367,421.75
  6. Step 6: Final answer
    x = 15,977,458.57

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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.