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Finding the Fourth Proportional to 26,991.83, 40,488 and 10,347.89

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Solution

The fourth proportional to 26,991.83, 40,488 and 10,347.89 is: 15,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,991.83 : 40,488 = 10,347.89 : x
  2. Step 2: Convert to fraction form
    26,991.83/40,488 = 10,347.89/x
  3. Step 3: Cross multiply
    26,991.83x = 40,488 × 10,347.89
  4. Step 4: Simplify right side
    26,991.83x = 418,965,370.32
  5. Step 5: Solve for x
    x = 418,965,370.32/26,991.83
  6. Step 6: Final answer
    x = 15,521.93

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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.