Home / 22,383.44-30,889.96-12,312.66

Finding the Fourth Proportional to 22,383.44, 30,889.96 and 12,312.66

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Solution

The fourth proportional to 22,383.44, 30,889.96 and 12,312.66 is: 16,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,383.44 : 30,889.96 = 12,312.66 : x
  2. Step 2: Convert to fraction form
    22,383.44/30,889.96 = 12,312.66/x
  3. Step 3: Cross multiply
    22,383.44x = 30,889.96 × 12,312.66
  4. Step 4: Simplify right side
    22,383.44x = 380,337,486.19
  5. Step 5: Solve for x
    x = 380,337,486.19/22,383.44
  6. Step 6: Final answer
    x = 16,991.91

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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.