Home / 19,717.32-27,220.98-13,676.36

Finding the Fourth Proportional to 19,717.32, 27,220.98 and 13,676.36

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Solution

The fourth proportional to 19,717.32, 27,220.98 and 13,676.36 is: 18,881.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.32 : 27,220.98 = 13,676.36 : x
  2. Step 2: Convert to fraction form
    19,717.32/27,220.98 = 13,676.36/x
  3. Step 3: Cross multiply
    19,717.32x = 27,220.98 × 13,676.36
  4. Step 4: Simplify right side
    19,717.32x = 372,283,922.03
  5. Step 5: Solve for x
    x = 372,283,922.03/19,717.32
  6. Step 6: Final answer
    x = 18,881.06

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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.