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Finding the Fourth Proportional to 26,488.50, 36,558.99 and 15,310.50

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Solution

The fourth proportional to 26,488.50, 36,558.99 and 15,310.50 is: 21,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,488.50 : 36,558.99 = 15,310.50 : x
  2. Step 2: Convert to fraction form
    26,488.50/36,558.99 = 15,310.50/x
  3. Step 3: Cross multiply
    26,488.50x = 36,558.99 × 15,310.50
  4. Step 4: Simplify right side
    26,488.50x = 559,736,416.40
  5. Step 5: Solve for x
    x = 559,736,416.40/26,488.50
  6. Step 6: Final answer
    x = 21,131.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.