Home / 30,250.55-41,749.47-18,318.03

Finding the Fourth Proportional to 30,250.55, 41,749.47 and 18,318.03

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Solution

The fourth proportional to 30,250.55, 41,749.47 and 18,318.03 is: 25,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.55 : 41,749.47 = 18,318.03 : x
  2. Step 2: Convert to fraction form
    30,250.55/41,749.47 = 18,318.03/x
  3. Step 3: Cross multiply
    30,250.55x = 41,749.47 × 18,318.03
  4. Step 4: Simplify right side
    30,250.55x = 764,768,043.94
  5. Step 5: Solve for x
    x = 764,768,043.94/30,250.55
  6. Step 6: Final answer
    x = 25,281.13

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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.