Home / 21,450.02-29,600.52-12,020.54

Finding the Fourth Proportional to 21,450.02, 29,600.52 and 12,020.54

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Solution

The fourth proportional to 21,450.02, 29,600.52 and 12,020.54 is: 16,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.02 : 29,600.52 = 12,020.54 : x
  2. Step 2: Convert to fraction form
    21,450.02/29,600.52 = 12,020.54/x
  3. Step 3: Cross multiply
    21,450.02x = 29,600.52 × 12,020.54
  4. Step 4: Simplify right side
    21,450.02x = 355,814,234.68
  5. Step 5: Solve for x
    x = 355,814,234.68/21,450.02
  6. Step 6: Final answer
    x = 16,588.06

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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.