Home / 26,917.84-40,414.24-13,779.28

Finding the Fourth Proportional to 26,917.84, 40,414.24 and 13,779.28

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Solution

The fourth proportional to 26,917.84, 40,414.24 and 13,779.28 is: 20,688.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,917.84 : 40,414.24 = 13,779.28 : x
  2. Step 2: Convert to fraction form
    26,917.84/40,414.24 = 13,779.28/x
  3. Step 3: Cross multiply
    26,917.84x = 40,414.24 × 13,779.28
  4. Step 4: Simplify right side
    26,917.84x = 556,879,128.95
  5. Step 5: Solve for x
    x = 556,879,128.95/26,917.84
  6. Step 6: Final answer
    x = 20,688.11

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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.