Home / 22,712.64-34,025.96-12,821.88

Finding the Fourth Proportional to 22,712.64, 34,025.96 and 12,821.88

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Solution

The fourth proportional to 22,712.64, 34,025.96 and 12,821.88 is: 19,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.64 : 34,025.96 = 12,821.88 : x
  2. Step 2: Convert to fraction form
    22,712.64/34,025.96 = 12,821.88/x
  3. Step 3: Cross multiply
    22,712.64x = 34,025.96 × 12,821.88
  4. Step 4: Simplify right side
    22,712.64x = 436,276,776.00
  5. Step 5: Solve for x
    x = 436,276,776.00/22,712.64
  6. Step 6: Final answer
    x = 19,208.55

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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.