Home / 21,900.24-32,835.60-10,216.80

Finding the Fourth Proportional to 21,900.24, 32,835.60 and 10,216.80

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Solution

The fourth proportional to 21,900.24, 32,835.60 and 10,216.80 is: 15,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900.24 : 32,835.60 = 10,216.80 : x
  2. Step 2: Convert to fraction form
    21,900.24/32,835.60 = 10,216.80/x
  3. Step 3: Cross multiply
    21,900.24x = 32,835.60 × 10,216.80
  4. Step 4: Simplify right side
    21,900.24x = 335,474,758.08
  5. Step 5: Solve for x
    x = 335,474,758.08/21,900.24
  6. Step 6: Final answer
    x = 15,318.31

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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.