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Finding the Fourth Proportional to 27,135, 37,443.24 and 15,806.88

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Solution

The fourth proportional to 27,135, 37,443.24 and 15,806.88 is: 21,811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135 : 37,443.24 = 15,806.88 : x
  2. Step 2: Convert to fraction form
    27,135/37,443.24 = 15,806.88/x
  3. Step 3: Cross multiply
    27,135x = 37,443.24 × 15,806.88
  4. Step 4: Simplify right side
    27,135x = 591,860,801.49
  5. Step 5: Solve for x
    x = 591,860,801.49/27,135
  6. Step 6: Final answer
    x = 21,811.71

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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.