Home / 20,396.90-30,617.22-10,533.53

Finding the Fourth Proportional to 20,396.90, 30,617.22 and 10,533.53

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Solution

The fourth proportional to 20,396.90, 30,617.22 and 10,533.53 is: 15,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.90 : 30,617.22 = 10,533.53 : x
  2. Step 2: Convert to fraction form
    20,396.90/30,617.22 = 10,533.53/x
  3. Step 3: Cross multiply
    20,396.90x = 30,617.22 × 10,533.53
  4. Step 4: Simplify right side
    20,396.90x = 322,507,405.39
  5. Step 5: Solve for x
    x = 322,507,405.39/20,396.90
  6. Step 6: Final answer
    x = 15,811.59

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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.