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Finding the Fourth Proportional to 37,146.58, 51,261.87 and 20,379.58

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Solution

The fourth proportional to 37,146.58, 51,261.87 and 20,379.58 is: 28,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,146.58 : 51,261.87 = 20,379.58 : x
  2. Step 2: Convert to fraction form
    37,146.58/51,261.87 = 20,379.58/x
  3. Step 3: Cross multiply
    37,146.58x = 51,261.87 × 20,379.58
  4. Step 4: Simplify right side
    37,146.58x = 1,044,695,380.61
  5. Step 5: Solve for x
    x = 1,044,695,380.61/37,146.58
  6. Step 6: Final answer
    x = 28,123.60

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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.