Home / 37,692.20-52,011.38-21,781.78

Finding the Fourth Proportional to 37,692.20, 52,011.38 and 21,781.78

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Solution

The fourth proportional to 37,692.20, 52,011.38 and 21,781.78 is: 30,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,692.20 : 52,011.38 = 21,781.78 : x
  2. Step 2: Convert to fraction form
    37,692.20/52,011.38 = 21,781.78/x
  3. Step 3: Cross multiply
    37,692.20x = 52,011.38 × 21,781.78
  4. Step 4: Simplify right side
    37,692.20x = 1,132,900,436.66
  5. Step 5: Solve for x
    x = 1,132,900,436.66/37,692.20
  6. Step 6: Final answer
    x = 30,056.63

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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.