Home / 22,381.41-30,885.73-12,309.85

Finding the Fourth Proportional to 22,381.41, 30,885.73 and 12,309.85

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Solution

The fourth proportional to 22,381.41, 30,885.73 and 12,309.85 is: 16,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,381.41 : 30,885.73 = 12,309.85 : x
  2. Step 2: Convert to fraction form
    22,381.41/30,885.73 = 12,309.85/x
  3. Step 3: Cross multiply
    22,381.41x = 30,885.73 × 12,309.85
  4. Step 4: Simplify right side
    22,381.41x = 380,198,703.44
  5. Step 5: Solve for x
    x = 380,198,703.44/22,381.41
  6. Step 6: Final answer
    x = 16,987.25

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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.