Home / 21,425.45-29,563.61-13,462.07

Finding the Fourth Proportional to 21,425.45, 29,563.61 and 13,462.07

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Solution

The fourth proportional to 21,425.45, 29,563.61 and 13,462.07 is: 18,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.45 : 29,563.61 = 13,462.07 : x
  2. Step 2: Convert to fraction form
    21,425.45/29,563.61 = 13,462.07/x
  3. Step 3: Cross multiply
    21,425.45x = 29,563.61 × 13,462.07
  4. Step 4: Simplify right side
    21,425.45x = 397,987,172.14
  5. Step 5: Solve for x
    x = 397,987,172.14/21,425.45
  6. Step 6: Final answer
    x = 18,575.44

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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.