Home / 21,525.69-29,704.50-12,574.02

Finding the Fourth Proportional to 21,525.69, 29,704.50 and 12,574.02

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Solution

The fourth proportional to 21,525.69, 29,704.50 and 12,574.02 is: 17,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.69 : 29,704.50 = 12,574.02 : x
  2. Step 2: Convert to fraction form
    21,525.69/29,704.50 = 12,574.02/x
  3. Step 3: Cross multiply
    21,525.69x = 29,704.50 × 12,574.02
  4. Step 4: Simplify right side
    21,525.69x = 373,504,977.09
  5. Step 5: Solve for x
    x = 373,504,977.09/21,525.69
  6. Step 6: Final answer
    x = 17,351.59

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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.