Home / 19,675.64-27,149.30-11,290.52

Finding the Fourth Proportional to 19,675.64, 27,149.30 and 11,290.52

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Solution

The fourth proportional to 19,675.64, 27,149.30 and 11,290.52 is: 15,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.64 : 27,149.30 = 11,290.52 : x
  2. Step 2: Convert to fraction form
    19,675.64/27,149.30 = 11,290.52/x
  3. Step 3: Cross multiply
    19,675.64x = 27,149.30 × 11,290.52
  4. Step 4: Simplify right side
    19,675.64x = 306,529,714.64
  5. Step 5: Solve for x
    x = 306,529,714.64/19,675.64
  6. Step 6: Final answer
    x = 15,579.15

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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.