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Finding the Fourth Proportional to 26,889, 40,333.36 and 6,898.40

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Solution

The fourth proportional to 26,889, 40,333.36 and 6,898.40 is: 10,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,889 : 40,333.36 = 6,898.40 : x
  2. Step 2: Convert to fraction form
    26,889/40,333.36 = 6,898.40/x
  3. Step 3: Cross multiply
    26,889x = 40,333.36 × 6,898.40
  4. Step 4: Simplify right side
    26,889x = 278,235,650.62
  5. Step 5: Solve for x
    x = 278,235,650.62/26,889
  6. Step 6: Final answer
    x = 10,347.56

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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.