Home / 48,728.71-67,234.21-28,584.55

Finding the Fourth Proportional to 48,728.71, 67,234.21 and 28,584.55

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Solution

The fourth proportional to 48,728.71, 67,234.21 and 28,584.55 is: 39,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.71 : 67,234.21 = 28,584.55 : x
  2. Step 2: Convert to fraction form
    48,728.71/67,234.21 = 28,584.55/x
  3. Step 3: Cross multiply
    48,728.71x = 67,234.21 × 28,584.55
  4. Step 4: Simplify right side
    48,728.71x = 1,921,859,637.46
  5. Step 5: Solve for x
    x = 1,921,859,637.46/48,728.71
  6. Step 6: Final answer
    x = 39,439.99

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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.