Home / 37,778.50-56,648.94-21,988.78

Finding the Fourth Proportional to 37,778.50, 56,648.94 and 21,988.78

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Solution

The fourth proportional to 37,778.50, 56,648.94 and 21,988.78 is: 32,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.50 : 56,648.94 = 21,988.78 : x
  2. Step 2: Convert to fraction form
    37,778.50/56,648.94 = 21,988.78/x
  3. Step 3: Cross multiply
    37,778.50x = 56,648.94 × 21,988.78
  4. Step 4: Simplify right side
    37,778.50x = 1,245,641,078.89
  5. Step 5: Solve for x
    x = 1,245,641,078.89/37,778.50
  6. Step 6: Final answer
    x = 32,972.22

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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.