Home / 19,383.72-29,075.58-5,343.86

Finding the Fourth Proportional to 19,383.72, 29,075.58 and 5,343.86

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Solution

The fourth proportional to 19,383.72, 29,075.58 and 5,343.86 is: 8,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,383.72 : 29,075.58 = 5,343.86 : x
  2. Step 2: Convert to fraction form
    19,383.72/29,075.58 = 5,343.86/x
  3. Step 3: Cross multiply
    19,383.72x = 29,075.58 × 5,343.86
  4. Step 4: Simplify right side
    19,383.72x = 155,375,683.56
  5. Step 5: Solve for x
    x = 155,375,683.56/19,383.72
  6. Step 6: Final answer
    x = 8,015.78

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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.