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Finding the Fourth Proportional to 30,154, 41,612.24 and 16,725.28

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Solution

The fourth proportional to 30,154, 41,612.24 and 16,725.28 is: 23,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154 : 41,612.24 = 16,725.28 : x
  2. Step 2: Convert to fraction form
    30,154/41,612.24 = 16,725.28/x
  3. Step 3: Cross multiply
    30,154x = 41,612.24 × 16,725.28
  4. Step 4: Simplify right side
    30,154x = 695,976,365.43
  5. Step 5: Solve for x
    x = 695,976,365.43/30,154
  6. Step 6: Final answer
    x = 23,080.73

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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.