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Finding the Fourth Proportional to 29,215, 43,800.63 and 9,481.78

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Solution

The fourth proportional to 29,215, 43,800.63 and 9,481.78 is: 14,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,215 : 43,800.63 = 9,481.78 : x
  2. Step 2: Convert to fraction form
    29,215/43,800.63 = 9,481.78/x
  3. Step 3: Cross multiply
    29,215x = 43,800.63 × 9,481.78
  4. Step 4: Simplify right side
    29,215x = 415,307,937.52
  5. Step 5: Solve for x
    x = 415,307,937.52/29,215
  6. Step 6: Final answer
    x = 14,215.57

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1.5x scale

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.