Home / 21,943.44-30,282.48-12,512.16

Finding the Fourth Proportional to 21,943.44, 30,282.48 and 12,512.16

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Solution

The fourth proportional to 21,943.44, 30,282.48 and 12,512.16 is: 17,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.44 : 30,282.48 = 12,512.16 : x
  2. Step 2: Convert to fraction form
    21,943.44/30,282.48 = 12,512.16/x
  3. Step 3: Cross multiply
    21,943.44x = 30,282.48 × 12,512.16
  4. Step 4: Simplify right side
    21,943.44x = 378,899,234.96
  5. Step 5: Solve for x
    x = 378,899,234.96/21,943.44
  6. Step 6: Final answer
    x = 17,267.08

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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.