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Finding the Fourth Proportional to 26,503, 36,574 and 15,172.44

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Solution

The fourth proportional to 26,503, 36,574 and 15,172.44 is: 20,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,503 : 36,574 = 15,172.44 : x
  2. Step 2: Convert to fraction form
    26,503/36,574 = 15,172.44/x
  3. Step 3: Cross multiply
    26,503x = 36,574 × 15,172.44
  4. Step 4: Simplify right side
    26,503x = 554,916,820.56
  5. Step 5: Solve for x
    x = 554,916,820.56/26,503
  6. Step 6: Final answer
    x = 20,937.89

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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.