Home / 20,579.00-28,398.43-12,080.98

Finding the Fourth Proportional to 20,579.00, 28,398.43 and 12,080.98

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Solution

The fourth proportional to 20,579.00, 28,398.43 and 12,080.98 is: 16,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.00 : 28,398.43 = 12,080.98 : x
  2. Step 2: Convert to fraction form
    20,579.00/28,398.43 = 12,080.98/x
  3. Step 3: Cross multiply
    20,579.00x = 28,398.43 × 12,080.98
  4. Step 4: Simplify right side
    20,579.00x = 343,080,935.86
  5. Step 5: Solve for x
    x = 343,080,935.86/20,579.00
  6. Step 6: Final answer
    x = 16,671.41

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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.