Home / 28,749.79-43,131.57-9,028.34

Finding the Fourth Proportional to 28,749.79, 43,131.57 and 9,028.34

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Solution

The fourth proportional to 28,749.79, 43,131.57 and 9,028.34 is: 13,544.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.79 : 43,131.57 = 9,028.34 : x
  2. Step 2: Convert to fraction form
    28,749.79/43,131.57 = 9,028.34/x
  3. Step 3: Cross multiply
    28,749.79x = 43,131.57 × 9,028.34
  4. Step 4: Simplify right side
    28,749.79x = 389,406,478.69
  5. Step 5: Solve for x
    x = 389,406,478.69/28,749.79
  6. Step 6: Final answer
    x = 13,544.67

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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.