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Finding the Fourth Proportional to 37,694.61, 56,451.60 and 21,013.20

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Solution

The fourth proportional to 37,694.61, 56,451.60 and 21,013.20 is: 31,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,694.61 : 56,451.60 = 21,013.20 : x
  2. Step 2: Convert to fraction form
    37,694.61/56,451.60 = 21,013.20/x
  3. Step 3: Cross multiply
    37,694.61x = 56,451.60 × 21,013.20
  4. Step 4: Simplify right side
    37,694.61x = 1,186,228,761.12
  5. Step 5: Solve for x
    x = 1,186,228,761.12/37,694.61
  6. Step 6: Final answer
    x = 31,469.45

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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.