Home / 28,899.60-43,353.96-12,259.68

Finding the Fourth Proportional to 28,899.60, 43,353.96 and 12,259.68

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Solution

The fourth proportional to 28,899.60, 43,353.96 and 12,259.68 is: 18,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.60 : 43,353.96 = 12,259.68 : x
  2. Step 2: Convert to fraction form
    28,899.60/43,353.96 = 12,259.68/x
  3. Step 3: Cross multiply
    28,899.60x = 43,353.96 × 12,259.68
  4. Step 4: Simplify right side
    28,899.60x = 531,505,676.33
  5. Step 5: Solve for x
    x = 531,505,676.33/28,899.60
  6. Step 6: Final answer
    x = 18,391.45

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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.