Home / 20,191.56-27,771.62-16,203.93

Finding the Fourth Proportional to 20,191.56, 27,771.62 and 16,203.93

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Solution

The fourth proportional to 20,191.56, 27,771.62 and 16,203.93 is: 22,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.56 : 27,771.62 = 16,203.93 : x
  2. Step 2: Convert to fraction form
    20,191.56/27,771.62 = 16,203.93/x
  3. Step 3: Cross multiply
    20,191.56x = 27,771.62 × 16,203.93
  4. Step 4: Simplify right side
    20,191.56x = 450,009,386.47
  5. Step 5: Solve for x
    x = 450,009,386.47/20,191.56
  6. Step 6: Final answer
    x = 22,287.00

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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.