Home / 20,141.78-27,823.68-19,157.66

Finding the Fourth Proportional to 20,141.78, 27,823.68 and 19,157.66

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Solution

The fourth proportional to 20,141.78, 27,823.68 and 19,157.66 is: 26,464.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.78 : 27,823.68 = 19,157.66 : x
  2. Step 2: Convert to fraction form
    20,141.78/27,823.68 = 19,157.66/x
  3. Step 3: Cross multiply
    20,141.78x = 27,823.68 × 19,157.66
  4. Step 4: Simplify right side
    20,141.78x = 533,036,601.39
  5. Step 5: Solve for x
    x = 533,036,601.39/20,141.78
  6. Step 6: Final answer
    x = 26,464.23

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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.