Home / 21,753.36-30,093.12-20,966.04

Finding the Fourth Proportional to 21,753.36, 30,093.12 and 20,966.04

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Solution

The fourth proportional to 21,753.36, 30,093.12 and 20,966.04 is: 29,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.36 : 30,093.12 = 20,966.04 : x
  2. Step 2: Convert to fraction form
    21,753.36/30,093.12 = 20,966.04/x
  3. Step 3: Cross multiply
    21,753.36x = 30,093.12 × 20,966.04
  4. Step 4: Simplify right side
    21,753.36x = 630,933,557.64
  5. Step 5: Solve for x
    x = 630,933,557.64/21,753.36
  6. Step 6: Final answer
    x = 29,003.96

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1.5x scale

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.