Home / 22,261.37-30,719.53-12,187.88

Finding the Fourth Proportional to 22,261.37, 30,719.53 and 12,187.88

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Solution

The fourth proportional to 22,261.37, 30,719.53 and 12,187.88 is: 16,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.37 : 30,719.53 = 12,187.88 : x
  2. Step 2: Convert to fraction form
    22,261.37/30,719.53 = 12,187.88/x
  3. Step 3: Cross multiply
    22,261.37x = 30,719.53 × 12,187.88
  4. Step 4: Simplify right side
    22,261.37x = 374,405,945.30
  5. Step 5: Solve for x
    x = 374,405,945.30/22,261.37
  6. Step 6: Final answer
    x = 16,818.64

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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.