Home / 19,851.57-27,395.60-11,354.47

Finding the Fourth Proportional to 19,851.57, 27,395.60 and 11,354.47

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Solution

The fourth proportional to 19,851.57, 27,395.60 and 11,354.47 is: 15,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.57 : 27,395.60 = 11,354.47 : x
  2. Step 2: Convert to fraction form
    19,851.57/27,395.60 = 11,354.47/x
  3. Step 3: Cross multiply
    19,851.57x = 27,395.60 × 11,354.47
  4. Step 4: Simplify right side
    19,851.57x = 311,062,518.33
  5. Step 5: Solve for x
    x = 311,062,518.33/19,851.57
  6. Step 6: Final answer
    x = 15,669.42

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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.