Home / 21,003.49-28,984.13-12,050.85

Finding the Fourth Proportional to 21,003.49, 28,984.13 and 12,050.85

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Solution

The fourth proportional to 21,003.49, 28,984.13 and 12,050.85 is: 16,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.49 : 28,984.13 = 12,050.85 : x
  2. Step 2: Convert to fraction form
    21,003.49/28,984.13 = 12,050.85/x
  3. Step 3: Cross multiply
    21,003.49x = 28,984.13 × 12,050.85
  4. Step 4: Simplify right side
    21,003.49x = 349,283,403.01
  5. Step 5: Solve for x
    x = 349,283,403.01/21,003.49
  6. Step 6: Final answer
    x = 16,629.78

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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.