Home / 21,347,187.69-29,458,767.36-11,557,553.61

Finding the Fourth Proportional to 21,347,187.69, 29,458,767.36 and 11,557,553.61

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Solution

The fourth proportional to 21,347,187.69, 29,458,767.36 and 11,557,553.61 is: 15,949,233.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347,187.69 : 29,458,767.36 = 11,557,553.61 : x
  2. Step 2: Convert to fraction form
    21,347,187.69/29,458,767.36 = 11,557,553.61/x
  3. Step 3: Cross multiply
    21,347,187.69x = 29,458,767.36 × 11,557,553.61
  4. Step 4: Simplify right side
    21,347,187.69x = 340,471,283,047,718.12
  5. Step 5: Solve for x
    x = 340,471,283,047,718.12/21,347,187.69
  6. Step 6: Final answer
    x = 15,949,233.59

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1.5x scale

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.