Home / 22,420.44-30,939.75-12,348.36

Finding the Fourth Proportional to 22,420.44, 30,939.75 and 12,348.36

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Solution

The fourth proportional to 22,420.44, 30,939.75 and 12,348.36 is: 17,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.44 : 30,939.75 = 12,348.36 : x
  2. Step 2: Convert to fraction form
    22,420.44/30,939.75 = 12,348.36/x
  3. Step 3: Cross multiply
    22,420.44x = 30,939.75 × 12,348.36
  4. Step 4: Simplify right side
    22,420.44x = 382,055,171.31
  5. Step 5: Solve for x
    x = 382,055,171.31/22,420.44
  6. Step 6: Final answer
    x = 17,040.48

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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.