Home / 28,860.30-43,288.83-7,800.03

Finding the Fourth Proportional to 28,860.30, 43,288.83 and 7,800.03

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Solution

The fourth proportional to 28,860.30, 43,288.83 and 7,800.03 is: 11,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.30 : 43,288.83 = 7,800.03 : x
  2. Step 2: Convert to fraction form
    28,860.30/43,288.83 = 7,800.03/x
  3. Step 3: Cross multiply
    28,860.30x = 43,288.83 × 7,800.03
  4. Step 4: Simplify right side
    28,860.30x = 337,654,172.66
  5. Step 5: Solve for x
    x = 337,654,172.66/28,860.30
  6. Step 6: Final answer
    x = 11,699.61

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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.