Home / 43,942.30-65,938.05-21,749.72

Finding the Fourth Proportional to 43,942.30, 65,938.05 and 21,749.72

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Solution

The fourth proportional to 43,942.30, 65,938.05 and 21,749.72 is: 32,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,942.30 : 65,938.05 = 21,749.72 : x
  2. Step 2: Convert to fraction form
    43,942.30/65,938.05 = 21,749.72/x
  3. Step 3: Cross multiply
    43,942.30x = 65,938.05 × 21,749.72
  4. Step 4: Simplify right side
    43,942.30x = 1,434,133,795.16
  5. Step 5: Solve for x
    x = 1,434,133,795.16/43,942.30
  6. Step 6: Final answer
    x = 32,636.75

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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.