Home / 30,250.05-41,748.78-18,317.53

Finding the Fourth Proportional to 30,250.05, 41,748.78 and 18,317.53

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Solution

The fourth proportional to 30,250.05, 41,748.78 and 18,317.53 is: 25,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.05 : 41,748.78 = 18,317.53 : x
  2. Step 2: Convert to fraction form
    30,250.05/41,748.78 = 18,317.53/x
  3. Step 3: Cross multiply
    30,250.05x = 41,748.78 × 18,317.53
  4. Step 4: Simplify right side
    30,250.05x = 764,734,530.11
  5. Step 5: Solve for x
    x = 764,734,530.11/30,250.05
  6. Step 6: Final answer
    x = 25,280.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.