Home / 27,989.79-38,625.84-15,414.54

Finding the Fourth Proportional to 27,989.79, 38,625.84 and 15,414.54

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Solution

The fourth proportional to 27,989.79, 38,625.84 and 15,414.54 is: 21,272.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.79 : 38,625.84 = 15,414.54 : x
  2. Step 2: Convert to fraction form
    27,989.79/38,625.84 = 15,414.54/x
  3. Step 3: Cross multiply
    27,989.79x = 38,625.84 × 15,414.54
  4. Step 4: Simplify right side
    27,989.79x = 595,399,555.71
  5. Step 5: Solve for x
    x = 595,399,555.71/27,989.79
  6. Step 6: Final answer
    x = 21,272.03

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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.