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Finding the Fourth Proportional to 37,379.88, 56,069.82 and 20,975.40

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Solution

The fourth proportional to 37,379.88, 56,069.82 and 20,975.40 is: 31,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,379.88 : 56,069.82 = 20,975.40 : x
  2. Step 2: Convert to fraction form
    37,379.88/56,069.82 = 20,975.40/x
  3. Step 3: Cross multiply
    37,379.88x = 56,069.82 × 20,975.40
  4. Step 4: Simplify right side
    37,379.88x = 1,176,086,902.43
  5. Step 5: Solve for x
    x = 1,176,086,902.43/37,379.88
  6. Step 6: Final answer
    x = 31,463.10

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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.