Home / 22,235.44-30,679.74-13,285.84

Finding the Fourth Proportional to 22,235.44, 30,679.74 and 13,285.84

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Solution

The fourth proportional to 22,235.44, 30,679.74 and 13,285.84 is: 18,331.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,235.44 : 30,679.74 = 13,285.84 : x
  2. Step 2: Convert to fraction form
    22,235.44/30,679.74 = 13,285.84/x
  3. Step 3: Cross multiply
    22,235.44x = 30,679.74 × 13,285.84
  4. Step 4: Simplify right side
    22,235.44x = 407,606,116.88
  5. Step 5: Solve for x
    x = 407,606,116.88/22,235.44
  6. Step 6: Final answer
    x = 18,331.37

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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.