Home / 21,385.36-29,511.06-11,824.66

Finding the Fourth Proportional to 21,385.36, 29,511.06 and 11,824.66

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Solution

The fourth proportional to 21,385.36, 29,511.06 and 11,824.66 is: 16,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.36 : 29,511.06 = 11,824.66 : x
  2. Step 2: Convert to fraction form
    21,385.36/29,511.06 = 11,824.66/x
  3. Step 3: Cross multiply
    21,385.36x = 29,511.06 × 11,824.66
  4. Step 4: Simplify right side
    21,385.36x = 348,958,250.74
  5. Step 5: Solve for x
    x = 348,958,250.74/21,385.36
  6. Step 6: Final answer
    x = 16,317.62

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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.