Home / 21,153.93-29,191.78-11,593.70

Finding the Fourth Proportional to 21,153.93, 29,191.78 and 11,593.70

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Solution

The fourth proportional to 21,153.93, 29,191.78 and 11,593.70 is: 15,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.93 : 29,191.78 = 11,593.70 : x
  2. Step 2: Convert to fraction form
    21,153.93/29,191.78 = 11,593.70/x
  3. Step 3: Cross multiply
    21,153.93x = 29,191.78 × 11,593.70
  4. Step 4: Simplify right side
    21,153.93x = 338,440,739.79
  5. Step 5: Solve for x
    x = 338,440,739.79/21,153.93
  6. Step 6: Final answer
    x = 15,998.95

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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.