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Finding the Fourth Proportional to 40,396, 55,750.80 and 23,643.04

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Solution

The fourth proportional to 40,396, 55,750.80 and 23,643.04 is: 32,629.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,396 : 55,750.80 = 23,643.04 : x
  2. Step 2: Convert to fraction form
    40,396/55,750.80 = 23,643.04/x
  3. Step 3: Cross multiply
    40,396x = 55,750.80 × 23,643.04
  4. Step 4: Simplify right side
    40,396x = 1,318,118,394.43
  5. Step 5: Solve for x
    x = 1,318,118,394.43/40,396
  6. Step 6: Final answer
    x = 32,629.92

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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.