Home / 22,391.48-30,902.26-12,321.88

Finding the Fourth Proportional to 22,391.48, 30,902.26 and 12,321.88

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Solution

The fourth proportional to 22,391.48, 30,902.26 and 12,321.88 is: 17,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.48 : 30,902.26 = 12,321.88 : x
  2. Step 2: Convert to fraction form
    22,391.48/30,902.26 = 12,321.88/x
  3. Step 3: Cross multiply
    22,391.48x = 30,902.26 × 12,321.88
  4. Step 4: Simplify right side
    22,391.48x = 380,773,939.45
  5. Step 5: Solve for x
    x = 380,773,939.45/22,391.48
  6. Step 6: Final answer
    x = 17,005.30

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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.