Home / 19,772.30-29,644.47-9,231.16

Finding the Fourth Proportional to 19,772.30, 29,644.47 and 9,231.16

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Solution

The fourth proportional to 19,772.30, 29,644.47 and 9,231.16 is: 13,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.30 : 29,644.47 = 9,231.16 : x
  2. Step 2: Convert to fraction form
    19,772.30/29,644.47 = 9,231.16/x
  3. Step 3: Cross multiply
    19,772.30x = 29,644.47 × 9,231.16
  4. Step 4: Simplify right side
    19,772.30x = 273,652,845.69
  5. Step 5: Solve for x
    x = 273,652,845.69/19,772.30
  6. Step 6: Final answer
    x = 13,840.21

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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.