Home / 28,387,882-39,175,277.16-15,510,826

Finding the Fourth Proportional to 28,387,882, 39,175,277.16 and 15,510,826

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Solution

The fourth proportional to 28,387,882, 39,175,277.16 and 15,510,826 is: 21,404,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,882 : 39,175,277.16 = 15,510,826 : x
  2. Step 2: Convert to fraction form
    28,387,882/39,175,277.16 = 15,510,826/x
  3. Step 3: Cross multiply
    28,387,882x = 39,175,277.16 × 15,510,826
  4. Step 4: Simplify right side
    28,387,882x = 607,640,907,530,534.12
  5. Step 5: Solve for x
    x = 607,640,907,530,534.12/28,387,882
  6. Step 6: Final answer
    x = 21,404,939.88

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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.