Home / 21,811.51-32,692.74-11,107.83

Finding the Fourth Proportional to 21,811.51, 32,692.74 and 11,107.83

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Solution

The fourth proportional to 21,811.51, 32,692.74 and 11,107.83 is: 16,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.51 : 32,692.74 = 11,107.83 : x
  2. Step 2: Convert to fraction form
    21,811.51/32,692.74 = 11,107.83/x
  3. Step 3: Cross multiply
    21,811.51x = 32,692.74 × 11,107.83
  4. Step 4: Simplify right side
    21,811.51x = 363,145,398.15
  5. Step 5: Solve for x
    x = 363,145,398.15/21,811.51
  6. Step 6: Final answer
    x = 16,649.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.