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Finding the Fourth Proportional to 30,306.79, 45,467.07 and 9,248.71

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Solution

The fourth proportional to 30,306.79, 45,467.07 and 9,248.71 is: 13,875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.79 : 45,467.07 = 9,248.71 : x
  2. Step 2: Convert to fraction form
    30,306.79/45,467.07 = 9,248.71/x
  3. Step 3: Cross multiply
    30,306.79x = 45,467.07 × 9,248.71
  4. Step 4: Simplify right side
    30,306.79x = 420,511,744.98
  5. Step 5: Solve for x
    x = 420,511,744.98/30,306.79
  6. Step 6: Final answer
    x = 13,875.17

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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.