Home / 47,128.92-70,676.06-13,840.44

Finding the Fourth Proportional to 47,128.92, 70,676.06 and 13,840.44

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Solution

The fourth proportional to 47,128.92, 70,676.06 and 13,840.44 is: 20,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.92 : 70,676.06 = 13,840.44 : x
  2. Step 2: Convert to fraction form
    47,128.92/70,676.06 = 13,840.44/x
  3. Step 3: Cross multiply
    47,128.92x = 70,676.06 × 13,840.44
  4. Step 4: Simplify right side
    47,128.92x = 978,187,767.87
  5. Step 5: Solve for x
    x = 978,187,767.87/47,128.92
  6. Step 6: Final answer
    x = 20,755.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.