Home / 27,912.84-38,520.43-15,165.89

Finding the Fourth Proportional to 27,912.84, 38,520.43 and 15,165.89

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Solution

The fourth proportional to 27,912.84, 38,520.43 and 15,165.89 is: 20,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.84 : 38,520.43 = 15,165.89 : x
  2. Step 2: Convert to fraction form
    27,912.84/38,520.43 = 15,165.89/x
  3. Step 3: Cross multiply
    27,912.84x = 38,520.43 × 15,165.89
  4. Step 4: Simplify right side
    27,912.84x = 584,196,604.13
  5. Step 5: Solve for x
    x = 584,196,604.13/27,912.84
  6. Step 6: Final answer
    x = 20,929.32

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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.