Home / 30,288.50-45,433.16-9,512

Finding the Fourth Proportional to 30,288.50, 45,433.16 and 9,512

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Solution

The fourth proportional to 30,288.50, 45,433.16 and 9,512 is: 14,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.50 : 45,433.16 = 9,512 : x
  2. Step 2: Convert to fraction form
    30,288.50/45,433.16 = 9,512/x
  3. Step 3: Cross multiply
    30,288.50x = 45,433.16 × 9,512
  4. Step 4: Simplify right side
    30,288.50x = 432,160,217.92
  5. Step 5: Solve for x
    x = 432,160,217.92/30,288.50
  6. Step 6: Final answer
    x = 14,268.13

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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.