Home / 27,907.36-38,511.12-15,331.36

Finding the Fourth Proportional to 27,907.36, 38,511.12 and 15,331.36

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Solution

The fourth proportional to 27,907.36, 38,511.12 and 15,331.36 is: 21,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.36 : 38,511.12 = 15,331.36 : x
  2. Step 2: Convert to fraction form
    27,907.36/38,511.12 = 15,331.36/x
  3. Step 3: Cross multiply
    27,907.36x = 38,511.12 × 15,331.36
  4. Step 4: Simplify right side
    27,907.36x = 590,427,844.72
  5. Step 5: Solve for x
    x = 590,427,844.72/27,907.36
  6. Step 6: Final answer
    x = 21,156.71

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Double scale
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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.