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Finding the Fourth Proportional to 37,757.70, 56,636.30 and 12,815.31

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Solution

The fourth proportional to 37,757.70, 56,636.30 and 12,815.31 is: 19,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,757.70 : 56,636.30 = 12,815.31 : x
  2. Step 2: Convert to fraction form
    37,757.70/56,636.30 = 12,815.31/x
  3. Step 3: Cross multiply
    37,757.70x = 56,636.30 × 12,815.31
  4. Step 4: Simplify right side
    37,757.70x = 725,811,986.18
  5. Step 5: Solve for x
    x = 725,811,986.18/37,757.70
  6. Step 6: Final answer
    x = 19,222.89

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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.