Home / 14,254.80-21,382.20-5,020.80

Finding the Fourth Proportional to 14,254.80, 21,382.20 and 5,020.80

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Solution

The fourth proportional to 14,254.80, 21,382.20 and 5,020.80 is: 7,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.80 : 21,382.20 = 5,020.80 : x
  2. Step 2: Convert to fraction form
    14,254.80/21,382.20 = 5,020.80/x
  3. Step 3: Cross multiply
    14,254.80x = 21,382.20 × 5,020.80
  4. Step 4: Simplify right side
    14,254.80x = 107,355,749.76
  5. Step 5: Solve for x
    x = 107,355,749.76/14,254.80
  6. Step 6: Final answer
    x = 7,531.20

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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.