Home / 21,273.19-29,359.75-12,202.09

Finding the Fourth Proportional to 21,273.19, 29,359.75 and 12,202.09

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Solution

The fourth proportional to 21,273.19, 29,359.75 and 12,202.09 is: 16,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.19 : 29,359.75 = 12,202.09 : x
  2. Step 2: Convert to fraction form
    21,273.19/29,359.75 = 12,202.09/x
  3. Step 3: Cross multiply
    21,273.19x = 29,359.75 × 12,202.09
  4. Step 4: Simplify right side
    21,273.19x = 358,250,311.88
  5. Step 5: Solve for x
    x = 358,250,311.88/21,273.19
  6. Step 6: Final answer
    x = 16,840.46

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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.