Home / 21,015,493.24-31,532,343.24-11,288,756.72

Finding the Fourth Proportional to 21,015,493.24, 31,532,343.24 and 11,288,756.72

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Solution

The fourth proportional to 21,015,493.24, 31,532,343.24 and 11,288,756.72 is: 16,938,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015,493.24 : 31,532,343.24 = 11,288,756.72 : x
  2. Step 2: Convert to fraction form
    21,015,493.24/31,532,343.24 = 11,288,756.72/x
  3. Step 3: Cross multiply
    21,015,493.24x = 31,532,343.24 × 11,288,756.72
  4. Step 4: Simplify right side
    21,015,493.24x = 355,960,951,647,896.56
  5. Step 5: Solve for x
    x = 355,960,951,647,896.56/21,015,493.24
  6. Step 6: Final answer
    x = 16,938,025.08

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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.