Home / 28,652.46-39,539.92-15,905.62

Finding the Fourth Proportional to 28,652.46, 39,539.92 and 15,905.62

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Solution

The fourth proportional to 28,652.46, 39,539.92 and 15,905.62 is: 21,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.46 : 39,539.92 = 15,905.62 : x
  2. Step 2: Convert to fraction form
    28,652.46/39,539.92 = 15,905.62/x
  3. Step 3: Cross multiply
    28,652.46x = 39,539.92 × 15,905.62
  4. Step 4: Simplify right side
    28,652.46x = 628,906,942.35
  5. Step 5: Solve for x
    x = 628,906,942.35/28,652.46
  6. Step 6: Final answer
    x = 21,949.49

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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.