Home / 21,753.77-32,645.23-13,968.05

Finding the Fourth Proportional to 21,753.77, 32,645.23 and 13,968.05

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Solution

The fourth proportional to 21,753.77, 32,645.23 and 13,968.05 is: 20,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.77 : 32,645.23 = 13,968.05 : x
  2. Step 2: Convert to fraction form
    21,753.77/32,645.23 = 13,968.05/x
  3. Step 3: Cross multiply
    21,753.77x = 32,645.23 × 13,968.05
  4. Step 4: Simplify right side
    21,753.77x = 455,990,158.21
  5. Step 5: Solve for x
    x = 455,990,158.21/21,753.77
  6. Step 6: Final answer
    x = 20,961.43

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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.