Home / 21,069.24-29,077.26-12,119.64

Finding the Fourth Proportional to 21,069.24, 29,077.26 and 12,119.64

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Solution

The fourth proportional to 21,069.24, 29,077.26 and 12,119.64 is: 16,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.24 : 29,077.26 = 12,119.64 : x
  2. Step 2: Convert to fraction form
    21,069.24/29,077.26 = 12,119.64/x
  3. Step 3: Cross multiply
    21,069.24x = 29,077.26 × 12,119.64
  4. Step 4: Simplify right side
    21,069.24x = 352,405,923.39
  5. Step 5: Solve for x
    x = 352,405,923.39/21,069.24
  6. Step 6: Final answer
    x = 16,726.09

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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.