Home / 28,009.22-38,654.60-15,433.97

Finding the Fourth Proportional to 28,009.22, 38,654.60 and 15,433.97

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Solution

The fourth proportional to 28,009.22, 38,654.60 and 15,433.97 is: 21,299.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009.22 : 38,654.60 = 15,433.97 : x
  2. Step 2: Convert to fraction form
    28,009.22/38,654.60 = 15,433.97/x
  3. Step 3: Cross multiply
    28,009.22x = 38,654.60 × 15,433.97
  4. Step 4: Simplify right side
    28,009.22x = 596,593,811.27
  5. Step 5: Solve for x
    x = 596,593,811.27/28,009.22
  6. Step 6: Final answer
    x = 21,299.91

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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.