Home / 19,880.27-27,405.81-13,893.33

Finding the Fourth Proportional to 19,880.27, 27,405.81 and 13,893.33

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Solution

The fourth proportional to 19,880.27, 27,405.81 and 13,893.33 is: 19,152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.27 : 27,405.81 = 13,893.33 : x
  2. Step 2: Convert to fraction form
    19,880.27/27,405.81 = 13,893.33/x
  3. Step 3: Cross multiply
    19,880.27x = 27,405.81 × 13,893.33
  4. Step 4: Simplify right side
    19,880.27x = 380,757,962.25
  5. Step 5: Solve for x
    x = 380,757,962.25/19,880.27
  6. Step 6: Final answer
    x = 19,152.56

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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.