Home / 21,593-29,811.30-14,153.96

Finding the Fourth Proportional to 21,593, 29,811.30 and 14,153.96

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Solution

The fourth proportional to 21,593, 29,811.30 and 14,153.96 is: 19,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593 : 29,811.30 = 14,153.96 : x
  2. Step 2: Convert to fraction form
    21,593/29,811.30 = 14,153.96/x
  3. Step 3: Cross multiply
    21,593x = 29,811.30 × 14,153.96
  4. Step 4: Simplify right side
    21,593x = 421,947,947.75
  5. Step 5: Solve for x
    x = 421,947,947.75/21,593
  6. Step 6: Final answer
    x = 19,540.96

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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.