Home / 14,531.20-21,796.80-4,671.20

Finding the Fourth Proportional to 14,531.20, 21,796.80 and 4,671.20

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Solution

The fourth proportional to 14,531.20, 21,796.80 and 4,671.20 is: 7,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,531.20 : 21,796.80 = 4,671.20 : x
  2. Step 2: Convert to fraction form
    14,531.20/21,796.80 = 4,671.20/x
  3. Step 3: Cross multiply
    14,531.20x = 21,796.80 × 4,671.20
  4. Step 4: Simplify right side
    14,531.20x = 101,817,212.16
  5. Step 5: Solve for x
    x = 101,817,212.16/14,531.20
  6. Step 6: Final answer
    x = 7,006.80

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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.