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Finding the Fourth Proportional to 41,009.87, 61,492.93 and 21,239.39

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Solution

The fourth proportional to 41,009.87, 61,492.93 and 21,239.39 is: 31,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,009.87 : 61,492.93 = 21,239.39 : x
  2. Step 2: Convert to fraction form
    41,009.87/61,492.93 = 21,239.39/x
  3. Step 3: Cross multiply
    41,009.87x = 61,492.93 × 21,239.39
  4. Step 4: Simplify right side
    41,009.87x = 1,306,072,322.51
  5. Step 5: Solve for x
    x = 1,306,072,322.51/41,009.87
  6. Step 6: Final answer
    x = 31,847.76

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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.