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Finding the Fourth Proportional to 37,376, 51,578.88 and 20,609.12

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Solution

The fourth proportional to 37,376, 51,578.88 and 20,609.12 is: 28,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,376 : 51,578.88 = 20,609.12 : x
  2. Step 2: Convert to fraction form
    37,376/51,578.88 = 20,609.12/x
  3. Step 3: Cross multiply
    37,376x = 51,578.88 × 20,609.12
  4. Step 4: Simplify right side
    37,376x = 1,062,995,327.39
  5. Step 5: Solve for x
    x = 1,062,995,327.39/37,376
  6. Step 6: Final answer
    x = 28,440.59

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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.