Home / 21,152.93-29,190.40-11,592.70

Finding the Fourth Proportional to 21,152.93, 29,190.40 and 11,592.70

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Solution

The fourth proportional to 21,152.93, 29,190.40 and 11,592.70 is: 15,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.93 : 29,190.40 = 11,592.70 : x
  2. Step 2: Convert to fraction form
    21,152.93/29,190.40 = 11,592.70/x
  3. Step 3: Cross multiply
    21,152.93x = 29,190.40 × 11,592.70
  4. Step 4: Simplify right side
    21,152.93x = 338,395,550.08
  5. Step 5: Solve for x
    x = 338,395,550.08/21,152.93
  6. Step 6: Final answer
    x = 15,997.57

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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.