Home / 21,012.44-28,992.90-12,062.84

Finding the Fourth Proportional to 21,012.44, 28,992.90 and 12,062.84

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Solution

The fourth proportional to 21,012.44, 28,992.90 and 12,062.84 is: 16,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012.44 : 28,992.90 = 12,062.84 : x
  2. Step 2: Convert to fraction form
    21,012.44/28,992.90 = 12,062.84/x
  3. Step 3: Cross multiply
    21,012.44x = 28,992.90 × 12,062.84
  4. Step 4: Simplify right side
    21,012.44x = 349,736,713.84
  5. Step 5: Solve for x
    x = 349,736,713.84/21,012.44
  6. Step 6: Final answer
    x = 16,644.27

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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.