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Finding the Fourth Proportional to 30,268.11, 45,402.18 and 9,208.11

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Solution

The fourth proportional to 30,268.11, 45,402.18 and 9,208.11 is: 13,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,268.11 : 45,402.18 = 9,208.11 : x
  2. Step 2: Convert to fraction form
    30,268.11/45,402.18 = 9,208.11/x
  3. Step 3: Cross multiply
    30,268.11x = 45,402.18 × 9,208.11
  4. Step 4: Simplify right side
    30,268.11x = 418,068,267.68
  5. Step 5: Solve for x
    x = 418,068,267.68/30,268.11
  6. Step 6: Final answer
    x = 13,812.17

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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.