Home / 34,779.56-47,942.70-21,325.86

Finding the Fourth Proportional to 34,779.56, 47,942.70 and 21,325.86

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Solution

The fourth proportional to 34,779.56, 47,942.70 and 21,325.86 is: 29,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,779.56 : 47,942.70 = 21,325.86 : x
  2. Step 2: Convert to fraction form
    34,779.56/47,942.70 = 21,325.86/x
  3. Step 3: Cross multiply
    34,779.56x = 47,942.70 × 21,325.86
  4. Step 4: Simplify right side
    34,779.56x = 1,022,419,308.22
  5. Step 5: Solve for x
    x = 1,022,419,308.22/34,779.56
  6. Step 6: Final answer
    x = 29,397.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.