Home / 21,455.28-32,182.92-6,665.09

Finding the Fourth Proportional to 21,455.28, 32,182.92 and 6,665.09

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Solution

The fourth proportional to 21,455.28, 32,182.92 and 6,665.09 is: 9,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.28 : 32,182.92 = 6,665.09 : x
  2. Step 2: Convert to fraction form
    21,455.28/32,182.92 = 6,665.09/x
  3. Step 3: Cross multiply
    21,455.28x = 32,182.92 × 6,665.09
  4. Step 4: Simplify right side
    21,455.28x = 214,501,897.35
  5. Step 5: Solve for x
    x = 214,501,897.35/21,455.28
  6. Step 6: Final answer
    x = 9,997.63

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1.5x scale

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.