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Finding the Fourth Proportional to 30,354.48, 45,536.31 and 9,289.62

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Solution

The fourth proportional to 30,354.48, 45,536.31 and 9,289.62 is: 13,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,354.48 : 45,536.31 = 9,289.62 : x
  2. Step 2: Convert to fraction form
    30,354.48/45,536.31 = 9,289.62/x
  3. Step 3: Cross multiply
    30,354.48x = 45,536.31 × 9,289.62
  4. Step 4: Simplify right side
    30,354.48x = 423,015,016.10
  5. Step 5: Solve for x
    x = 423,015,016.10/30,354.48
  6. Step 6: Final answer
    x = 13,935.83

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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.