Home / 19,905.80-27,467.70-13,627.40

Finding the Fourth Proportional to 19,905.80, 27,467.70 and 13,627.40

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Solution

The fourth proportional to 19,905.80, 27,467.70 and 13,627.40 is: 18,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.80 : 27,467.70 = 13,627.40 : x
  2. Step 2: Convert to fraction form
    19,905.80/27,467.70 = 13,627.40/x
  3. Step 3: Cross multiply
    19,905.80x = 27,467.70 × 13,627.40
  4. Step 4: Simplify right side
    19,905.80x = 374,313,334.98
  5. Step 5: Solve for x
    x = 374,313,334.98/19,905.80
  6. Step 6: Final answer
    x = 18,804.23

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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.