Home / 21,179.64-29,228.94-11,748.24

Finding the Fourth Proportional to 21,179.64, 29,228.94 and 11,748.24

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Solution

The fourth proportional to 21,179.64, 29,228.94 and 11,748.24 is: 16,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.64 : 29,228.94 = 11,748.24 : x
  2. Step 2: Convert to fraction form
    21,179.64/29,228.94 = 11,748.24/x
  3. Step 3: Cross multiply
    21,179.64x = 29,228.94 × 11,748.24
  4. Step 4: Simplify right side
    21,179.64x = 343,388,602.07
  5. Step 5: Solve for x
    x = 343,388,602.07/21,179.64
  6. Step 6: Final answer
    x = 16,213.15

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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.