Home / 21,698.60-29,940.36-12,266.96

Finding the Fourth Proportional to 21,698.60, 29,940.36 and 12,266.96

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Solution

The fourth proportional to 21,698.60, 29,940.36 and 12,266.96 is: 16,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,698.60 : 29,940.36 = 12,266.96 : x
  2. Step 2: Convert to fraction form
    21,698.60/29,940.36 = 12,266.96/x
  3. Step 3: Cross multiply
    21,698.60x = 29,940.36 × 12,266.96
  4. Step 4: Simplify right side
    21,698.60x = 367,277,198.51
  5. Step 5: Solve for x
    x = 367,277,198.51/21,698.60
  6. Step 6: Final answer
    x = 16,926.31

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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.