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Finding the Fourth Proportional to 29,971.26, 45,007.02 and 28,779.30

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Solution

The fourth proportional to 29,971.26, 45,007.02 and 28,779.30 is: 43,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,971.26 : 45,007.02 = 28,779.30 : x
  2. Step 2: Convert to fraction form
    29,971.26/45,007.02 = 28,779.30/x
  3. Step 3: Cross multiply
    29,971.26x = 45,007.02 × 28,779.30
  4. Step 4: Simplify right side
    29,971.26x = 1,295,270,530.69
  5. Step 5: Solve for x
    x = 1,295,270,530.69/29,971.26
  6. Step 6: Final answer
    x = 43,217.09

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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.