Home / 19,851.54-27,403.56-13,392.60

Finding the Fourth Proportional to 19,851.54, 27,403.56 and 13,392.60

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Solution

The fourth proportional to 19,851.54, 27,403.56 and 13,392.60 is: 18,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.54 : 27,403.56 = 13,392.60 : x
  2. Step 2: Convert to fraction form
    19,851.54/27,403.56 = 13,392.60/x
  3. Step 3: Cross multiply
    19,851.54x = 27,403.56 × 13,392.60
  4. Step 4: Simplify right side
    19,851.54x = 367,004,917.66
  5. Step 5: Solve for x
    x = 367,004,917.66/19,851.54
  6. Step 6: Final answer
    x = 18,487.48

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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.