Home / 31,122.45-46,664.82-12,405.33

Finding the Fourth Proportional to 31,122.45, 46,664.82 and 12,405.33

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Solution

The fourth proportional to 31,122.45, 46,664.82 and 12,405.33 is: 18,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.45 : 46,664.82 = 12,405.33 : x
  2. Step 2: Convert to fraction form
    31,122.45/46,664.82 = 12,405.33/x
  3. Step 3: Cross multiply
    31,122.45x = 46,664.82 × 12,405.33
  4. Step 4: Simplify right side
    31,122.45x = 578,892,491.49
  5. Step 5: Solve for x
    x = 578,892,491.49/31,122.45
  6. Step 6: Final answer
    x = 18,600.48

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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.