Home / 21,334.61-29,441.63-11,644.09

Finding the Fourth Proportional to 21,334.61, 29,441.63 and 11,644.09

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Solution

The fourth proportional to 21,334.61, 29,441.63 and 11,644.09 is: 16,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.61 : 29,441.63 = 11,644.09 : x
  2. Step 2: Convert to fraction form
    21,334.61/29,441.63 = 11,644.09/x
  3. Step 3: Cross multiply
    21,334.61x = 29,441.63 × 11,644.09
  4. Step 4: Simplify right side
    21,334.61x = 342,820,944.97
  5. Step 5: Solve for x
    x = 342,820,944.97/21,334.61
  6. Step 6: Final answer
    x = 16,068.77

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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.