Home / 30,579.40-45,896.10-18,083.80

Finding the Fourth Proportional to 30,579.40, 45,896.10 and 18,083.80

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Solution

The fourth proportional to 30,579.40, 45,896.10 and 18,083.80 is: 27,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.40 : 45,896.10 = 18,083.80 : x
  2. Step 2: Convert to fraction form
    30,579.40/45,896.10 = 18,083.80/x
  3. Step 3: Cross multiply
    30,579.40x = 45,896.10 × 18,083.80
  4. Step 4: Simplify right side
    30,579.40x = 829,975,893.18
  5. Step 5: Solve for x
    x = 829,975,893.18/30,579.40
  6. Step 6: Final answer
    x = 27,141.67

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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.