Home / 29,207.05-43,779.29-20,861.75

Finding the Fourth Proportional to 29,207.05, 43,779.29 and 20,861.75

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Solution

The fourth proportional to 29,207.05, 43,779.29 and 20,861.75 is: 31,270.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,207.05 : 43,779.29 = 20,861.75 : x
  2. Step 2: Convert to fraction form
    29,207.05/43,779.29 = 20,861.75/x
  3. Step 3: Cross multiply
    29,207.05x = 43,779.29 × 20,861.75
  4. Step 4: Simplify right side
    29,207.05x = 913,312,608.30
  5. Step 5: Solve for x
    x = 913,312,608.30/29,207.05
  6. Step 6: Final answer
    x = 31,270.28

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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.