Home / 31,230.20-46,845.32-7,856.63

Finding the Fourth Proportional to 31,230.20, 46,845.32 and 7,856.63

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Solution

The fourth proportional to 31,230.20, 46,845.32 and 7,856.63 is: 11,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,230.20 : 46,845.32 = 7,856.63 : x
  2. Step 2: Convert to fraction form
    31,230.20/46,845.32 = 7,856.63/x
  3. Step 3: Cross multiply
    31,230.20x = 46,845.32 × 7,856.63
  4. Step 4: Simplify right side
    31,230.20x = 368,046,072.96
  5. Step 5: Solve for x
    x = 368,046,072.96/31,230.20
  6. Step 6: Final answer
    x = 11,784.94

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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.