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Finding the Fourth Proportional to 32,620, 45,019.44 and 19,372

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Solution

The fourth proportional to 32,620, 45,019.44 and 19,372 is: 26,735.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,620 : 45,019.44 = 19,372 : x
  2. Step 2: Convert to fraction form
    32,620/45,019.44 = 19,372/x
  3. Step 3: Cross multiply
    32,620x = 45,019.44 × 19,372
  4. Step 4: Simplify right side
    32,620x = 872,116,591.68
  5. Step 5: Solve for x
    x = 872,116,591.68/32,620
  6. Step 6: Final answer
    x = 26,735.64

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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.