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Finding the Fourth Proportional to 30,360.98, 45,542.84 and 9,299.49

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Solution

The fourth proportional to 30,360.98, 45,542.84 and 9,299.49 is: 13,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.98 : 45,542.84 = 9,299.49 : x
  2. Step 2: Convert to fraction form
    30,360.98/45,542.84 = 9,299.49/x
  3. Step 3: Cross multiply
    30,360.98x = 45,542.84 × 9,299.49
  4. Step 4: Simplify right side
    30,360.98x = 423,525,185.15
  5. Step 5: Solve for x
    x = 423,525,185.15/30,360.98
  6. Step 6: Final answer
    x = 13,949.65

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Half scale
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Double scale
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Similar ratio
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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.