Home / 30,292.43-45,435.05-8,107.52

Finding the Fourth Proportional to 30,292.43, 45,435.05 and 8,107.52

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Solution

The fourth proportional to 30,292.43, 45,435.05 and 8,107.52 is: 12,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,292.43 : 45,435.05 = 8,107.52 : x
  2. Step 2: Convert to fraction form
    30,292.43/45,435.05 = 8,107.52/x
  3. Step 3: Cross multiply
    30,292.43x = 45,435.05 × 8,107.52
  4. Step 4: Simplify right side
    30,292.43x = 368,365,339.27
  5. Step 5: Solve for x
    x = 368,365,339.27/30,292.43
  6. Step 6: Final answer
    x = 12,160.31

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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.