Home / 26,929-40,401.66-13,790.68

Finding the Fourth Proportional to 26,929, 40,401.66 and 13,790.68

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Solution

The fourth proportional to 26,929, 40,401.66 and 13,790.68 is: 20,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929 : 40,401.66 = 13,790.68 : x
  2. Step 2: Convert to fraction form
    26,929/40,401.66 = 13,790.68/x
  3. Step 3: Cross multiply
    26,929x = 40,401.66 × 13,790.68
  4. Step 4: Simplify right side
    26,929x = 557,166,364.53
  5. Step 5: Solve for x
    x = 557,166,364.53/26,929
  6. Step 6: Final answer
    x = 20,690.20

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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.