Home / 26,282.22-39,382.83-12,939.90

Finding the Fourth Proportional to 26,282.22, 39,382.83 and 12,939.90

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Solution

The fourth proportional to 26,282.22, 39,382.83 and 12,939.90 is: 19,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,282.22 : 39,382.83 = 12,939.90 : x
  2. Step 2: Convert to fraction form
    26,282.22/39,382.83 = 12,939.90/x
  3. Step 3: Cross multiply
    26,282.22x = 39,382.83 × 12,939.90
  4. Step 4: Simplify right side
    26,282.22x = 509,609,881.92
  5. Step 5: Solve for x
    x = 509,609,881.92/26,282.22
  6. Step 6: Final answer
    x = 19,389.91

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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.