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Finding the Fourth Proportional to 30,009.20, 44,965.20 and 25,635.20

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Solution

The fourth proportional to 30,009.20, 44,965.20 and 25,635.20 is: 38,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.20 : 44,965.20 = 25,635.20 : x
  2. Step 2: Convert to fraction form
    30,009.20/44,965.20 = 25,635.20/x
  3. Step 3: Cross multiply
    30,009.20x = 44,965.20 × 25,635.20
  4. Step 4: Simplify right side
    30,009.20x = 1,152,691,895.04
  5. Step 5: Solve for x
    x = 1,152,691,895.04/30,009.20
  6. Step 6: Final answer
    x = 38,411.28

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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.