Home / 21,163.32-29,187.18-13,197.24

Finding the Fourth Proportional to 21,163.32, 29,187.18 and 13,197.24

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Solution

The fourth proportional to 21,163.32, 29,187.18 and 13,197.24 is: 18,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.32 : 29,187.18 = 13,197.24 : x
  2. Step 2: Convert to fraction form
    21,163.32/29,187.18 = 13,197.24/x
  3. Step 3: Cross multiply
    21,163.32x = 29,187.18 × 13,197.24
  4. Step 4: Simplify right side
    21,163.32x = 385,190,219.38
  5. Step 5: Solve for x
    x = 385,190,219.38/21,163.32
  6. Step 6: Final answer
    x = 18,200.84

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Half scale
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Double scale
Find fourth proportional to 21,164.32, 29,188.56 and 13,198.24
Similar ratio
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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.