Home / 37,381.35-51,586.11-20,385.55

Finding the Fourth Proportional to 37,381.35, 51,586.11 and 20,385.55

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Solution

The fourth proportional to 37,381.35, 51,586.11 and 20,385.55 is: 28,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,381.35 : 51,586.11 = 20,385.55 : x
  2. Step 2: Convert to fraction form
    37,381.35/51,586.11 = 20,385.55/x
  3. Step 3: Cross multiply
    37,381.35x = 51,586.11 × 20,385.55
  4. Step 4: Simplify right side
    37,381.35x = 1,051,611,365.64
  5. Step 5: Solve for x
    x = 1,051,611,365.64/37,381.35
  6. Step 6: Final answer
    x = 28,131.98

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Double scale
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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.