Home / 21,485.36-29,651.60-11,926.16

Finding the Fourth Proportional to 21,485.36, 29,651.60 and 11,926.16

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Solution

The fourth proportional to 21,485.36, 29,651.60 and 11,926.16 is: 16,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.36 : 29,651.60 = 11,926.16 : x
  2. Step 2: Convert to fraction form
    21,485.36/29,651.60 = 11,926.16/x
  3. Step 3: Cross multiply
    21,485.36x = 29,651.60 × 11,926.16
  4. Step 4: Simplify right side
    21,485.36x = 353,629,725.86
  5. Step 5: Solve for x
    x = 353,629,725.86/21,485.36
  6. Step 6: Final answer
    x = 16,459.10

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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.