Home / 20,199.06-27,876.02-13,900.50

Finding the Fourth Proportional to 20,199.06, 27,876.02 and 13,900.50

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Solution

The fourth proportional to 20,199.06, 27,876.02 and 13,900.50 is: 19,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.06 : 27,876.02 = 13,900.50 : x
  2. Step 2: Convert to fraction form
    20,199.06/27,876.02 = 13,900.50/x
  3. Step 3: Cross multiply
    20,199.06x = 27,876.02 × 13,900.50
  4. Step 4: Simplify right side
    20,199.06x = 387,490,546.51
  5. Step 5: Solve for x
    x = 387,490,546.51/20,199.06
  6. Step 6: Final answer
    x = 19,183.59

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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.