Home / 21,394.21-29,525.37-11,962.77

Finding the Fourth Proportional to 21,394.21, 29,525.37 and 11,962.77

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Solution

The fourth proportional to 21,394.21, 29,525.37 and 11,962.77 is: 16,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,394.21 : 29,525.37 = 11,962.77 : x
  2. Step 2: Convert to fraction form
    21,394.21/29,525.37 = 11,962.77/x
  3. Step 3: Cross multiply
    21,394.21x = 29,525.37 × 11,962.77
  4. Step 4: Simplify right side
    21,394.21x = 353,205,003.03
  5. Step 5: Solve for x
    x = 353,205,003.03/21,394.21
  6. Step 6: Final answer
    x = 16,509.38

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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.