Home / 27,999.12-38,639.76-16,064.88

Finding the Fourth Proportional to 27,999.12, 38,639.76 and 16,064.88

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Solution

The fourth proportional to 27,999.12, 38,639.76 and 16,064.88 is: 22,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.12 : 38,639.76 = 16,064.88 : x
  2. Step 2: Convert to fraction form
    27,999.12/38,639.76 = 16,064.88/x
  3. Step 3: Cross multiply
    27,999.12x = 38,639.76 × 16,064.88
  4. Step 4: Simplify right side
    27,999.12x = 620,743,107.63
  5. Step 5: Solve for x
    x = 620,743,107.63/27,999.12
  6. Step 6: Final answer
    x = 22,170.09

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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.