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Finding the Fourth Proportional to 30,308.62, 41,822.21 and 17,387.22

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Solution

The fourth proportional to 30,308.62, 41,822.21 and 17,387.22 is: 23,992.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.62 : 41,822.21 = 17,387.22 : x
  2. Step 2: Convert to fraction form
    30,308.62/41,822.21 = 17,387.22/x
  3. Step 3: Cross multiply
    30,308.62x = 41,822.21 × 17,387.22
  4. Step 4: Simplify right side
    30,308.62x = 727,171,966.16
  5. Step 5: Solve for x
    x = 727,171,966.16/30,308.62
  6. Step 6: Final answer
    x = 23,992.25

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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.