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Finding the Fourth Proportional to 30,118.96, 45,179.88 and 14,549.68

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Solution

The fourth proportional to 30,118.96, 45,179.88 and 14,549.68 is: 21,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.96 : 45,179.88 = 14,549.68 : x
  2. Step 2: Convert to fraction form
    30,118.96/45,179.88 = 14,549.68/x
  3. Step 3: Cross multiply
    30,118.96x = 45,179.88 × 14,549.68
  4. Step 4: Simplify right side
    30,118.96x = 657,352,796.44
  5. Step 5: Solve for x
    x = 657,352,796.44/30,118.96
  6. Step 6: Final answer
    x = 21,825.22

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1.5x scale

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.