Home / 19,716.32-27,219.60-13,675.36

Finding the Fourth Proportional to 19,716.32, 27,219.60 and 13,675.36

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Solution

The fourth proportional to 19,716.32, 27,219.60 and 13,675.36 is: 18,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.32 : 27,219.60 = 13,675.36 : x
  2. Step 2: Convert to fraction form
    19,716.32/27,219.60 = 13,675.36/x
  3. Step 3: Cross multiply
    19,716.32x = 27,219.60 × 13,675.36
  4. Step 4: Simplify right side
    19,716.32x = 372,237,829.06
  5. Step 5: Solve for x
    x = 372,237,829.06/19,716.32
  6. Step 6: Final answer
    x = 18,879.68

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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.