Home / 43,826.70-65,664.45-20,405.10

Finding the Fourth Proportional to 43,826.70, 65,664.45 and 20,405.10

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Solution

The fourth proportional to 43,826.70, 65,664.45 and 20,405.10 is: 30,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,826.70 : 65,664.45 = 20,405.10 : x
  2. Step 2: Convert to fraction form
    43,826.70/65,664.45 = 20,405.10/x
  3. Step 3: Cross multiply
    43,826.70x = 65,664.45 × 20,405.10
  4. Step 4: Simplify right side
    43,826.70x = 1,339,889,668.70
  5. Step 5: Solve for x
    x = 1,339,889,668.70/43,826.70
  6. Step 6: Final answer
    x = 30,572.45

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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.