Home / 20,238.06-27,925.02-11,285.22

Finding the Fourth Proportional to 20,238.06, 27,925.02 and 11,285.22

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Solution

The fourth proportional to 20,238.06, 27,925.02 and 11,285.22 is: 15,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.06 : 27,925.02 = 11,285.22 : x
  2. Step 2: Convert to fraction form
    20,238.06/27,925.02 = 11,285.22/x
  3. Step 3: Cross multiply
    20,238.06x = 27,925.02 × 11,285.22
  4. Step 4: Simplify right side
    20,238.06x = 315,139,994.20
  5. Step 5: Solve for x
    x = 315,139,994.20/20,238.06
  6. Step 6: Final answer
    x = 15,571.65

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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.