Home / 19,807.05-27,334.47-11,310.55

Finding the Fourth Proportional to 19,807.05, 27,334.47 and 11,310.55

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Solution

The fourth proportional to 19,807.05, 27,334.47 and 11,310.55 is: 15,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.05 : 27,334.47 = 11,310.55 : x
  2. Step 2: Convert to fraction form
    19,807.05/27,334.47 = 11,310.55/x
  3. Step 3: Cross multiply
    19,807.05x = 27,334.47 × 11,310.55
  4. Step 4: Simplify right side
    19,807.05x = 309,167,889.66
  5. Step 5: Solve for x
    x = 309,167,889.66/19,807.05
  6. Step 6: Final answer
    x = 15,608.98

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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.