Home / 21,709.53-32,563.69-6,919.34

Finding the Fourth Proportional to 21,709.53, 32,563.69 and 6,919.34

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Solution

The fourth proportional to 21,709.53, 32,563.69 and 6,919.34 is: 10,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.53 : 32,563.69 = 6,919.34 : x
  2. Step 2: Convert to fraction form
    21,709.53/32,563.69 = 6,919.34/x
  3. Step 3: Cross multiply
    21,709.53x = 32,563.69 × 6,919.34
  4. Step 4: Simplify right side
    21,709.53x = 225,319,161.36
  5. Step 5: Solve for x
    x = 225,319,161.36/21,709.53
  6. Step 6: Final answer
    x = 10,378.81

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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.