Home / 22,372.43-30,874.77-12,813.80

Finding the Fourth Proportional to 22,372.43, 30,874.77 and 12,813.80

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Solution

The fourth proportional to 22,372.43, 30,874.77 and 12,813.80 is: 17,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,372.43 : 30,874.77 = 12,813.80 : x
  2. Step 2: Convert to fraction form
    22,372.43/30,874.77 = 12,813.80/x
  3. Step 3: Cross multiply
    22,372.43x = 30,874.77 × 12,813.80
  4. Step 4: Simplify right side
    22,372.43x = 395,622,973.45
  5. Step 5: Solve for x
    x = 395,622,973.45/22,372.43
  6. Step 6: Final answer
    x = 17,683.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.