Home / 14,577.20-21,865.80-12,849.20

Finding the Fourth Proportional to 14,577.20, 21,865.80 and 12,849.20

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Solution

The fourth proportional to 14,577.20, 21,865.80 and 12,849.20 is: 19,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.20 : 21,865.80 = 12,849.20 : x
  2. Step 2: Convert to fraction form
    14,577.20/21,865.80 = 12,849.20/x
  3. Step 3: Cross multiply
    14,577.20x = 21,865.80 × 12,849.20
  4. Step 4: Simplify right side
    14,577.20x = 280,958,037.36
  5. Step 5: Solve for x
    x = 280,958,037.36/14,577.20
  6. Step 6: Final answer
    x = 19,273.80

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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.