Home / 26,731.60-40,076.04-12,684.56

Finding the Fourth Proportional to 26,731.60, 40,076.04 and 12,684.56

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Solution

The fourth proportional to 26,731.60, 40,076.04 and 12,684.56 is: 19,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,731.60 : 40,076.04 = 12,684.56 : x
  2. Step 2: Convert to fraction form
    26,731.60/40,076.04 = 12,684.56/x
  3. Step 3: Cross multiply
    26,731.60x = 40,076.04 × 12,684.56
  4. Step 4: Simplify right side
    26,731.60x = 508,346,933.94
  5. Step 5: Solve for x
    x = 508,346,933.94/26,731.60
  6. Step 6: Final answer
    x = 19,016.70

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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.