Home / 21,011,005.59-28,995,631.38-11,843,645.91

Finding the Fourth Proportional to 21,011,005.59, 28,995,631.38 and 11,843,645.91

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Solution

The fourth proportional to 21,011,005.59, 28,995,631.38 and 11,843,645.91 is: 16,344,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,005.59 : 28,995,631.38 = 11,843,645.91 : x
  2. Step 2: Convert to fraction form
    21,011,005.59/28,995,631.38 = 11,843,645.91/x
  3. Step 3: Cross multiply
    21,011,005.59x = 28,995,631.38 × 11,843,645.91
  4. Step 4: Simplify right side
    21,011,005.59x = 343,413,991,001,604.62
  5. Step 5: Solve for x
    x = 343,413,991,001,604.62/21,011,005.59
  6. Step 6: Final answer
    x = 16,344,481.44

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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.