Home / 28,297.80-39,049.16-16,968.20

Finding the Fourth Proportional to 28,297.80, 39,049.16 and 16,968.20

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Solution

The fourth proportional to 28,297.80, 39,049.16 and 16,968.20 is: 23,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.80 : 39,049.16 = 16,968.20 : x
  2. Step 2: Convert to fraction form
    28,297.80/39,049.16 = 16,968.20/x
  3. Step 3: Cross multiply
    28,297.80x = 39,049.16 × 16,968.20
  4. Step 4: Simplify right side
    28,297.80x = 662,593,676.63
  5. Step 5: Solve for x
    x = 662,593,676.63/28,297.80
  6. Step 6: Final answer
    x = 23,415.02

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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.