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Finding the Fourth Proportional to 30,581.49, 45,872.28 and 8,395.14

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Solution

The fourth proportional to 30,581.49, 45,872.28 and 8,395.14 is: 12,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581.49 : 45,872.28 = 8,395.14 : x
  2. Step 2: Convert to fraction form
    30,581.49/45,872.28 = 8,395.14/x
  3. Step 3: Cross multiply
    30,581.49x = 45,872.28 × 8,395.14
  4. Step 4: Simplify right side
    30,581.49x = 385,104,212.72
  5. Step 5: Solve for x
    x = 385,104,212.72/30,581.49
  6. Step 6: Final answer
    x = 12,592.72

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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.