Home / 26,830.64-40,246.82-12,792.20

Finding the Fourth Proportional to 26,830.64, 40,246.82 and 12,792.20

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Solution

The fourth proportional to 26,830.64, 40,246.82 and 12,792.20 is: 19,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,830.64 : 40,246.82 = 12,792.20 : x
  2. Step 2: Convert to fraction form
    26,830.64/40,246.82 = 12,792.20/x
  3. Step 3: Cross multiply
    26,830.64x = 40,246.82 × 12,792.20
  4. Step 4: Simplify right side
    26,830.64x = 514,845,370.80
  5. Step 5: Solve for x
    x = 514,845,370.80/26,830.64
  6. Step 6: Final answer
    x = 19,188.71

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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.