Home / 26,904.32-40,356.06-12,102.78

Finding the Fourth Proportional to 26,904.32, 40,356.06 and 12,102.78

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Solution

The fourth proportional to 26,904.32, 40,356.06 and 12,102.78 is: 18,153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,904.32 : 40,356.06 = 12,102.78 : x
  2. Step 2: Convert to fraction form
    26,904.32/40,356.06 = 12,102.78/x
  3. Step 3: Cross multiply
    26,904.32x = 40,356.06 × 12,102.78
  4. Step 4: Simplify right side
    26,904.32x = 488,420,515.85
  5. Step 5: Solve for x
    x = 488,420,515.85/26,904.32
  6. Step 6: Final answer
    x = 18,153.98

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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.