Home / 27,999.77-38,636.57-16,667.73

Finding the Fourth Proportional to 27,999.77, 38,636.57 and 16,667.73

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Solution

The fourth proportional to 27,999.77, 38,636.57 and 16,667.73 is: 22,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.77 : 38,636.57 = 16,667.73 : x
  2. Step 2: Convert to fraction form
    27,999.77/38,636.57 = 16,667.73/x
  3. Step 3: Cross multiply
    27,999.77x = 38,636.57 × 16,667.73
  4. Step 4: Simplify right side
    27,999.77x = 643,983,833.55
  5. Step 5: Solve for x
    x = 643,983,833.55/27,999.77
  6. Step 6: Final answer
    x = 22,999.62

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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.