Home / 21,395.24-29,525.82-11,963.60

Finding the Fourth Proportional to 21,395.24, 29,525.82 and 11,963.60

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Solution

The fourth proportional to 21,395.24, 29,525.82 and 11,963.60 is: 16,509.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.24 : 29,525.82 = 11,963.60 : x
  2. Step 2: Convert to fraction form
    21,395.24/29,525.82 = 11,963.60/x
  3. Step 3: Cross multiply
    21,395.24x = 29,525.82 × 11,963.60
  4. Step 4: Simplify right side
    21,395.24x = 353,235,100.15
  5. Step 5: Solve for x
    x = 353,235,100.15/21,395.24
  6. Step 6: Final answer
    x = 16,509.99

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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.