Home / 28,900.23-43,353.23-7,840.60

Finding the Fourth Proportional to 28,900.23, 43,353.23 and 7,840.60

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Solution

The fourth proportional to 28,900.23, 43,353.23 and 7,840.60 is: 11,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.23 : 43,353.23 = 7,840.60 : x
  2. Step 2: Convert to fraction form
    28,900.23/43,353.23 = 7,840.60/x
  3. Step 3: Cross multiply
    28,900.23x = 43,353.23 × 7,840.60
  4. Step 4: Simplify right side
    28,900.23x = 339,915,187.55
  5. Step 5: Solve for x
    x = 339,915,187.55/28,900.23
  6. Step 6: Final answer
    x = 11,761.68

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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.