Home / 21,202.68-29,273.14-13,651.80

Finding the Fourth Proportional to 21,202.68, 29,273.14 and 13,651.80

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Solution

The fourth proportional to 21,202.68, 29,273.14 and 13,651.80 is: 18,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.68 : 29,273.14 = 13,651.80 : x
  2. Step 2: Convert to fraction form
    21,202.68/29,273.14 = 13,651.80/x
  3. Step 3: Cross multiply
    21,202.68x = 29,273.14 × 13,651.80
  4. Step 4: Simplify right side
    21,202.68x = 399,631,052.65
  5. Step 5: Solve for x
    x = 399,631,052.65/21,202.68
  6. Step 6: Final answer
    x = 18,848.14

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1.5x scale

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.