Home / 20,631,192.39-28,471,686.36-11,338,593.84

Finding the Fourth Proportional to 20,631,192.39, 28,471,686.36 and 11,338,593.84

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Solution

The fourth proportional to 20,631,192.39, 28,471,686.36 and 11,338,593.84 is: 15,647,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,192.39 : 28,471,686.36 = 11,338,593.84 : x
  2. Step 2: Convert to fraction form
    20,631,192.39/28,471,686.36 = 11,338,593.84/x
  3. Step 3: Cross multiply
    20,631,192.39x = 28,471,686.36 × 11,338,593.84
  4. Step 4: Simplify right side
    20,631,192.39x = 322,828,887,575,908
  5. Step 5: Solve for x
    x = 322,828,887,575,908/20,631,192.39
  6. Step 6: Final answer
    x = 15,647,611.71

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Double scale
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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.