Home / 22,054.78-30,439.70-12,623.34

Finding the Fourth Proportional to 22,054.78, 30,439.70 and 12,623.34

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Solution

The fourth proportional to 22,054.78, 30,439.70 and 12,623.34 is: 17,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,054.78 : 30,439.70 = 12,623.34 : x
  2. Step 2: Convert to fraction form
    22,054.78/30,439.70 = 12,623.34/x
  3. Step 3: Cross multiply
    22,054.78x = 30,439.70 × 12,623.34
  4. Step 4: Simplify right side
    22,054.78x = 384,250,780.97
  5. Step 5: Solve for x
    x = 384,250,780.97/22,054.78
  6. Step 6: Final answer
    x = 17,422.56

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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.