Home / 19,812.71-27,350.25-13,867.72

Finding the Fourth Proportional to 19,812.71, 27,350.25 and 13,867.72

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Solution

The fourth proportional to 19,812.71, 27,350.25 and 13,867.72 is: 19,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.71 : 27,350.25 = 13,867.72 : x
  2. Step 2: Convert to fraction form
    19,812.71/27,350.25 = 13,867.72/x
  3. Step 3: Cross multiply
    19,812.71x = 27,350.25 × 13,867.72
  4. Step 4: Simplify right side
    19,812.71x = 379,285,608.93
  5. Step 5: Solve for x
    x = 379,285,608.93/19,812.71
  6. Step 6: Final answer
    x = 19,143.55

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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.