Home / 28,723.89-43,062.60-12,917.35

Finding the Fourth Proportional to 28,723.89, 43,062.60 and 12,917.35

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Solution

The fourth proportional to 28,723.89, 43,062.60 and 12,917.35 is: 19,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.89 : 43,062.60 = 12,917.35 : x
  2. Step 2: Convert to fraction form
    28,723.89/43,062.60 = 12,917.35/x
  3. Step 3: Cross multiply
    28,723.89x = 43,062.60 × 12,917.35
  4. Step 4: Simplify right side
    28,723.89x = 556,254,676.11
  5. Step 5: Solve for x
    x = 556,254,676.11/28,723.89
  6. Step 6: Final answer
    x = 19,365.57

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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.