Home / 21,330.64-32,013.06-9,644.86

Finding the Fourth Proportional to 21,330.64, 32,013.06 and 9,644.86

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Solution

The fourth proportional to 21,330.64, 32,013.06 and 9,644.86 is: 14,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.64 : 32,013.06 = 9,644.86 : x
  2. Step 2: Convert to fraction form
    21,330.64/32,013.06 = 9,644.86/x
  3. Step 3: Cross multiply
    21,330.64x = 32,013.06 × 9,644.86
  4. Step 4: Simplify right side
    21,330.64x = 308,761,481.87
  5. Step 5: Solve for x
    x = 308,761,481.87/21,330.64
  6. Step 6: Final answer
    x = 14,475.02

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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.