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Finding the Fourth Proportional to 30,408.65, 45,618.80 and 9,344.94

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Solution

The fourth proportional to 30,408.65, 45,618.80 and 9,344.94 is: 14,019.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.65 : 45,618.80 = 9,344.94 : x
  2. Step 2: Convert to fraction form
    30,408.65/45,618.80 = 9,344.94/x
  3. Step 3: Cross multiply
    30,408.65x = 45,618.80 × 9,344.94
  4. Step 4: Simplify right side
    30,408.65x = 426,304,731.08
  5. Step 5: Solve for x
    x = 426,304,731.08/30,408.65
  6. Step 6: Final answer
    x = 14,019.19

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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.