Home / 27,989.42-38,623.65-15,414.17

Finding the Fourth Proportional to 27,989.42, 38,623.65 and 15,414.17

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Solution

The fourth proportional to 27,989.42, 38,623.65 and 15,414.17 is: 21,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.42 : 38,623.65 = 15,414.17 : x
  2. Step 2: Convert to fraction form
    27,989.42/38,623.65 = 15,414.17/x
  3. Step 3: Cross multiply
    27,989.42x = 38,623.65 × 15,414.17
  4. Step 4: Simplify right side
    27,989.42x = 595,351,733.90
  5. Step 5: Solve for x
    x = 595,351,733.90/27,989.42
  6. Step 6: Final answer
    x = 21,270.60

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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.