Home / 21,829.18-32,725.26-7,784.98

Finding the Fourth Proportional to 21,829.18, 32,725.26 and 7,784.98

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Solution

The fourth proportional to 21,829.18, 32,725.26 and 7,784.98 is: 11,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,829.18 : 32,725.26 = 7,784.98 : x
  2. Step 2: Convert to fraction form
    21,829.18/32,725.26 = 7,784.98/x
  3. Step 3: Cross multiply
    21,829.18x = 32,725.26 × 7,784.98
  4. Step 4: Simplify right side
    21,829.18x = 254,765,494.59
  5. Step 5: Solve for x
    x = 254,765,494.59/21,829.18
  6. Step 6: Final answer
    x = 11,670.87

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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.