Home / 27,490.83-37,938.09-15,553.90

Finding the Fourth Proportional to 27,490.83, 37,938.09 and 15,553.90

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Solution

The fourth proportional to 27,490.83, 37,938.09 and 15,553.90 is: 21,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,490.83 : 37,938.09 = 15,553.90 : x
  2. Step 2: Convert to fraction form
    27,490.83/37,938.09 = 15,553.90/x
  3. Step 3: Cross multiply
    27,490.83x = 37,938.09 × 15,553.90
  4. Step 4: Simplify right side
    27,490.83x = 590,085,363.80
  5. Step 5: Solve for x
    x = 590,085,363.80/27,490.83
  6. Step 6: Final answer
    x = 21,464.81

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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.