Home / 19,415.42-29,123.16-5,375.49

Finding the Fourth Proportional to 19,415.42, 29,123.16 and 5,375.49

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Solution

The fourth proportional to 19,415.42, 29,123.16 and 5,375.49 is: 8,063.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.42 : 29,123.16 = 5,375.49 : x
  2. Step 2: Convert to fraction form
    19,415.42/29,123.16 = 5,375.49/x
  3. Step 3: Cross multiply
    19,415.42x = 29,123.16 × 5,375.49
  4. Step 4: Simplify right side
    19,415.42x = 156,551,255.35
  5. Step 5: Solve for x
    x = 156,551,255.35/19,415.42
  6. Step 6: Final answer
    x = 8,063.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.