Home / 26,860.86-40,288.55-7,141.41

Finding the Fourth Proportional to 26,860.86, 40,288.55 and 7,141.41

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Solution

The fourth proportional to 26,860.86, 40,288.55 and 7,141.41 is: 10,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.86 : 40,288.55 = 7,141.41 : x
  2. Step 2: Convert to fraction form
    26,860.86/40,288.55 = 7,141.41/x
  3. Step 3: Cross multiply
    26,860.86x = 40,288.55 × 7,141.41
  4. Step 4: Simplify right side
    26,860.86x = 287,717,018.15
  5. Step 5: Solve for x
    x = 287,717,018.15/26,860.86
  6. Step 6: Final answer
    x = 10,711.39

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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.