Home / 28,234.18-38,963.37-15,659.02

Finding the Fourth Proportional to 28,234.18, 38,963.37 and 15,659.02

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Solution

The fourth proportional to 28,234.18, 38,963.37 and 15,659.02 is: 21,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.18 : 38,963.37 = 15,659.02 : x
  2. Step 2: Convert to fraction form
    28,234.18/38,963.37 = 15,659.02/x
  3. Step 3: Cross multiply
    28,234.18x = 38,963.37 × 15,659.02
  4. Step 4: Simplify right side
    28,234.18x = 610,128,190.10
  5. Step 5: Solve for x
    x = 610,128,190.10/28,234.18
  6. Step 6: Final answer
    x = 21,609.56

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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.