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Finding the Fourth Proportional to 27,351.78, 37,745.40 and 14,776.50

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Solution

The fourth proportional to 27,351.78, 37,745.40 and 14,776.50 is: 20,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,351.78 : 37,745.40 = 14,776.50 : x
  2. Step 2: Convert to fraction form
    27,351.78/37,745.40 = 14,776.50/x
  3. Step 3: Cross multiply
    27,351.78x = 37,745.40 × 14,776.50
  4. Step 4: Simplify right side
    27,351.78x = 557,744,903.10
  5. Step 5: Solve for x
    x = 557,744,903.10/27,351.78
  6. Step 6: Final answer
    x = 20,391.54

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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.