Home / 22,383.08-30,886.63-12,311.94

Finding the Fourth Proportional to 22,383.08, 30,886.63 and 12,311.94

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Solution

The fourth proportional to 22,383.08, 30,886.63 and 12,311.94 is: 16,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,383.08 : 30,886.63 = 12,311.94 : x
  2. Step 2: Convert to fraction form
    22,383.08/30,886.63 = 12,311.94/x
  3. Step 3: Cross multiply
    22,383.08x = 30,886.63 × 12,311.94
  4. Step 4: Simplify right side
    22,383.08x = 380,274,304.58
  5. Step 5: Solve for x
    x = 380,274,304.58/22,383.08
  6. Step 6: Final answer
    x = 16,989.37

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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.