Home / 21,757,441.21-30,023,788.71-12,591,461.77

Finding the Fourth Proportional to 21,757,441.21, 30,023,788.71 and 12,591,461.77

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Solution

The fourth proportional to 21,757,441.21, 30,023,788.71 and 12,591,461.77 is: 17,375,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757,441.21 : 30,023,788.71 = 12,591,461.77 : x
  2. Step 2: Convert to fraction form
    21,757,441.21/30,023,788.71 = 12,591,461.77/x
  3. Step 3: Cross multiply
    21,757,441.21x = 30,023,788.71 × 12,591,461.77
  4. Step 4: Simplify right side
    21,757,441.21x = 378,043,387,732,522.62
  5. Step 5: Solve for x
    x = 378,043,387,732,522.62/21,757,441.21
  6. Step 6: Final answer
    x = 17,375,360.64

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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.