Home / 21,665.28-29,895.96-12,232.02

Finding the Fourth Proportional to 21,665.28, 29,895.96 and 12,232.02

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Solution

The fourth proportional to 21,665.28, 29,895.96 and 12,232.02 is: 16,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665.28 : 29,895.96 = 12,232.02 : x
  2. Step 2: Convert to fraction form
    21,665.28/29,895.96 = 12,232.02/x
  3. Step 3: Cross multiply
    21,665.28x = 29,895.96 × 12,232.02
  4. Step 4: Simplify right side
    21,665.28x = 365,687,980.64
  5. Step 5: Solve for x
    x = 365,687,980.64/21,665.28
  6. Step 6: Final answer
    x = 16,878.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.