Home / 22,381.74-30,887.63-12,310.96

Finding the Fourth Proportional to 22,381.74, 30,887.63 and 12,310.96

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Solution

The fourth proportional to 22,381.74, 30,887.63 and 12,310.96 is: 16,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,381.74 : 30,887.63 = 12,310.96 : x
  2. Step 2: Convert to fraction form
    22,381.74/30,887.63 = 12,310.96/x
  3. Step 3: Cross multiply
    22,381.74x = 30,887.63 × 12,310.96
  4. Step 4: Simplify right side
    22,381.74x = 380,256,429.60
  5. Step 5: Solve for x
    x = 380,256,429.60/22,381.74
  6. Step 6: Final answer
    x = 16,989.58

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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.