Home / 18,220.42-25,144.32-10,261.90

Finding the Fourth Proportional to 18,220.42, 25,144.32 and 10,261.90

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Solution

The fourth proportional to 18,220.42, 25,144.32 and 10,261.90 is: 14,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.42 : 25,144.32 = 10,261.90 : x
  2. Step 2: Convert to fraction form
    18,220.42/25,144.32 = 10,261.90/x
  3. Step 3: Cross multiply
    18,220.42x = 25,144.32 × 10,261.90
  4. Step 4: Simplify right side
    18,220.42x = 258,028,497.41
  5. Step 5: Solve for x
    x = 258,028,497.41/18,220.42
  6. Step 6: Final answer
    x = 14,161.50

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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.