Home / 31,127.21-46,683.70-8,940.41

Finding the Fourth Proportional to 31,127.21, 46,683.70 and 8,940.41

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Solution

The fourth proportional to 31,127.21, 46,683.70 and 8,940.41 is: 13,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,127.21 : 46,683.70 = 8,940.41 : x
  2. Step 2: Convert to fraction form
    31,127.21/46,683.70 = 8,940.41/x
  3. Step 3: Cross multiply
    31,127.21x = 46,683.70 × 8,940.41
  4. Step 4: Simplify right side
    31,127.21x = 417,371,418.32
  5. Step 5: Solve for x
    x = 417,371,418.32/31,127.21
  6. Step 6: Final answer
    x = 13,408.57

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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.