Home / 30,099.96-45,172.98-13,453.56

Finding the Fourth Proportional to 30,099.96, 45,172.98 and 13,453.56

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Solution

The fourth proportional to 30,099.96, 45,172.98 and 13,453.56 is: 20,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,099.96 : 45,172.98 = 13,453.56 : x
  2. Step 2: Convert to fraction form
    30,099.96/45,172.98 = 13,453.56/x
  3. Step 3: Cross multiply
    30,099.96x = 45,172.98 × 13,453.56
  4. Step 4: Simplify right side
    30,099.96x = 607,737,396.81
  5. Step 5: Solve for x
    x = 607,737,396.81/30,099.96
  6. Step 6: Final answer
    x = 20,190.64

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1.5x scale

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.