Home / 19,270.07-28,912.20-13,766.73

Finding the Fourth Proportional to 19,270.07, 28,912.20 and 13,766.73

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Solution

The fourth proportional to 19,270.07, 28,912.20 and 13,766.73 is: 20,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.07 : 28,912.20 = 13,766.73 : x
  2. Step 2: Convert to fraction form
    19,270.07/28,912.20 = 13,766.73/x
  3. Step 3: Cross multiply
    19,270.07x = 28,912.20 × 13,766.73
  4. Step 4: Simplify right side
    19,270.07x = 398,026,399.48
  5. Step 5: Solve for x
    x = 398,026,399.48/19,270.07
  6. Step 6: Final answer
    x = 20,655.16

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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.