Home / 18,787.47-28,181.27-15,260.86

Finding the Fourth Proportional to 18,787.47, 28,181.27 and 15,260.86

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Solution

The fourth proportional to 18,787.47, 28,181.27 and 15,260.86 is: 22,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.47 : 28,181.27 = 15,260.86 : x
  2. Step 2: Convert to fraction form
    18,787.47/28,181.27 = 15,260.86/x
  3. Step 3: Cross multiply
    18,787.47x = 28,181.27 × 15,260.86
  4. Step 4: Simplify right side
    18,787.47x = 430,070,416.09
  5. Step 5: Solve for x
    x = 430,070,416.09/18,787.47
  6. Step 6: Final answer
    x = 22,891.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.