Home / 26,878.81-40,305.15-8,155.46

Finding the Fourth Proportional to 26,878.81, 40,305.15 and 8,155.46

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Solution

The fourth proportional to 26,878.81, 40,305.15 and 8,155.46 is: 12,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,878.81 : 40,305.15 = 8,155.46 : x
  2. Step 2: Convert to fraction form
    26,878.81/40,305.15 = 8,155.46/x
  3. Step 3: Cross multiply
    26,878.81x = 40,305.15 × 8,155.46
  4. Step 4: Simplify right side
    26,878.81x = 328,706,837.09
  5. Step 5: Solve for x
    x = 328,706,837.09/26,878.81
  6. Step 6: Final answer
    x = 12,229.22

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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.