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Finding the Fourth Proportional to 30,305.16, 45,459.48 and 9,245.94

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Solution

The fourth proportional to 30,305.16, 45,459.48 and 9,245.94 is: 13,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.16 : 45,459.48 = 9,245.94 : x
  2. Step 2: Convert to fraction form
    30,305.16/45,459.48 = 9,245.94/x
  3. Step 3: Cross multiply
    30,305.16x = 45,459.48 × 9,245.94
  4. Step 4: Simplify right side
    30,305.16x = 420,315,624.51
  5. Step 5: Solve for x
    x = 420,315,624.51/30,305.16
  6. Step 6: Final answer
    x = 13,869.44

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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.