Home / 31,112.97-46,650.68-12,395.90

Finding the Fourth Proportional to 31,112.97, 46,650.68 and 12,395.90

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Solution

The fourth proportional to 31,112.97, 46,650.68 and 12,395.90 is: 18,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.97 : 46,650.68 = 12,395.90 : x
  2. Step 2: Convert to fraction form
    31,112.97/46,650.68 = 12,395.90/x
  3. Step 3: Cross multiply
    31,112.97x = 46,650.68 × 12,395.90
  4. Step 4: Simplify right side
    31,112.97x = 578,276,930.96
  5. Step 5: Solve for x
    x = 578,276,930.96/31,112.97
  6. Step 6: Final answer
    x = 18,586.36

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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.