Home / 22,290.57-30,761.41-12,218.94

Finding the Fourth Proportional to 22,290.57, 30,761.41 and 12,218.94

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Solution

The fourth proportional to 22,290.57, 30,761.41 and 12,218.94 is: 16,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.57 : 30,761.41 = 12,218.94 : x
  2. Step 2: Convert to fraction form
    22,290.57/30,761.41 = 12,218.94/x
  3. Step 3: Cross multiply
    22,290.57x = 30,761.41 × 12,218.94
  4. Step 4: Simplify right side
    22,290.57x = 375,871,792.56
  5. Step 5: Solve for x
    x = 375,871,792.56/22,290.57
  6. Step 6: Final answer
    x = 16,862.37

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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.