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Finding the Fourth Proportional to 37,558, 51,830.40 and 20,791.36

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Solution

The fourth proportional to 37,558, 51,830.40 and 20,791.36 is: 28,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,558 : 51,830.40 = 20,791.36 : x
  2. Step 2: Convert to fraction form
    37,558/51,830.40 = 20,791.36/x
  3. Step 3: Cross multiply
    37,558x = 51,830.40 × 20,791.36
  4. Step 4: Simplify right side
    37,558x = 1,077,624,505.34
  5. Step 5: Solve for x
    x = 1,077,624,505.34/37,558
  6. Step 6: Final answer
    x = 28,692.28

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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.