Home / 47,128.38-70,692.22-11,589.54

Finding the Fourth Proportional to 47,128.38, 70,692.22 and 11,589.54

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Solution

The fourth proportional to 47,128.38, 70,692.22 and 11,589.54 is: 17,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.38 : 70,692.22 = 11,589.54 : x
  2. Step 2: Convert to fraction form
    47,128.38/70,692.22 = 11,589.54/x
  3. Step 3: Cross multiply
    47,128.38x = 70,692.22 × 11,589.54
  4. Step 4: Simplify right side
    47,128.38x = 819,290,311.38
  5. Step 5: Solve for x
    x = 819,290,311.38/47,128.38
  6. Step 6: Final answer
    x = 17,384.22

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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.