Home / 28,997.22-43,503.30-8,220.72

Finding the Fourth Proportional to 28,997.22, 43,503.30 and 8,220.72

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Solution

The fourth proportional to 28,997.22, 43,503.30 and 8,220.72 is: 12,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.22 : 43,503.30 = 8,220.72 : x
  2. Step 2: Convert to fraction form
    28,997.22/43,503.30 = 8,220.72/x
  3. Step 3: Cross multiply
    28,997.22x = 43,503.30 × 8,220.72
  4. Step 4: Simplify right side
    28,997.22x = 357,628,448.38
  5. Step 5: Solve for x
    x = 357,628,448.38/28,997.22
  6. Step 6: Final answer
    x = 12,333.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.