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Finding the Fourth Proportional to 32,821, 45,293 and 20,253.04

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Solution

The fourth proportional to 32,821, 45,293 and 20,253.04 is: 27,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,821 : 45,293 = 20,253.04 : x
  2. Step 2: Convert to fraction form
    32,821/45,293 = 20,253.04/x
  3. Step 3: Cross multiply
    32,821x = 45,293 × 20,253.04
  4. Step 4: Simplify right side
    32,821x = 917,320,940.72
  5. Step 5: Solve for x
    x = 917,320,940.72/32,821
  6. Step 6: Final answer
    x = 27,949.21

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1.5x scale

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.