Home / 28,996.40-43,494.60-8,220.08

Finding the Fourth Proportional to 28,996.40, 43,494.60 and 8,220.08

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Solution

The fourth proportional to 28,996.40, 43,494.60 and 8,220.08 is: 12,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.40 : 43,494.60 = 8,220.08 : x
  2. Step 2: Convert to fraction form
    28,996.40/43,494.60 = 8,220.08/x
  3. Step 3: Cross multiply
    28,996.40x = 43,494.60 × 8,220.08
  4. Step 4: Simplify right side
    28,996.40x = 357,529,091.57
  5. Step 5: Solve for x
    x = 357,529,091.57/28,996.40
  6. Step 6: Final answer
    x = 12,330.12

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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.