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Finding the Fourth Proportional to 40,394.88, 60,601.95 and 12,692.88

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Solution

The fourth proportional to 40,394.88, 60,601.95 and 12,692.88 is: 19,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,394.88 : 60,601.95 = 12,692.88 : x
  2. Step 2: Convert to fraction form
    40,394.88/60,601.95 = 12,692.88/x
  3. Step 3: Cross multiply
    40,394.88x = 60,601.95 × 12,692.88
  4. Step 4: Simplify right side
    40,394.88x = 769,213,279.12
  5. Step 5: Solve for x
    x = 769,213,279.12/40,394.88
  6. Step 6: Final answer
    x = 19,042.35

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1.5x scale

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.