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Finding the Fourth Proportional to 35,545, 53,317.52 and 10,921

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Solution

The fourth proportional to 35,545, 53,317.52 and 10,921 is: 16,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,545 : 53,317.52 = 10,921 : x
  2. Step 2: Convert to fraction form
    35,545/53,317.52 = 10,921/x
  3. Step 3: Cross multiply
    35,545x = 53,317.52 × 10,921
  4. Step 4: Simplify right side
    35,545x = 582,280,635.92
  5. Step 5: Solve for x
    x = 582,280,635.92/35,545
  6. Step 6: Final answer
    x = 16,381.51

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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.