Home / 30,906.45-46,344.15-15,112.71

Finding the Fourth Proportional to 30,906.45, 46,344.15 and 15,112.71

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Solution

The fourth proportional to 30,906.45, 46,344.15 and 15,112.71 is: 22,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.45 : 46,344.15 = 15,112.71 : x
  2. Step 2: Convert to fraction form
    30,906.45/46,344.15 = 15,112.71/x
  3. Step 3: Cross multiply
    30,906.45x = 46,344.15 × 15,112.71
  4. Step 4: Simplify right side
    30,906.45x = 700,385,699.15
  5. Step 5: Solve for x
    x = 700,385,699.15/30,906.45
  6. Step 6: Final answer
    x = 22,661.47

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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.