Home / 21,848.82-30,152.44-12,288.90

Finding the Fourth Proportional to 21,848.82, 30,152.44 and 12,288.90

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Solution

The fourth proportional to 21,848.82, 30,152.44 and 12,288.90 is: 16,959.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.82 : 30,152.44 = 12,288.90 : x
  2. Step 2: Convert to fraction form
    21,848.82/30,152.44 = 12,288.90/x
  3. Step 3: Cross multiply
    21,848.82x = 30,152.44 × 12,288.90
  4. Step 4: Simplify right side
    21,848.82x = 370,540,319.92
  5. Step 5: Solve for x
    x = 370,540,319.92/21,848.82
  6. Step 6: Final answer
    x = 16,959.28

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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.