Home / 28,749.21-43,125.63-9,028.54

Finding the Fourth Proportional to 28,749.21, 43,125.63 and 9,028.54

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Solution

The fourth proportional to 28,749.21, 43,125.63 and 9,028.54 is: 13,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.21 : 43,125.63 = 9,028.54 : x
  2. Step 2: Convert to fraction form
    28,749.21/43,125.63 = 9,028.54/x
  3. Step 3: Cross multiply
    28,749.21x = 43,125.63 × 9,028.54
  4. Step 4: Simplify right side
    28,749.21x = 389,361,495.53
  5. Step 5: Solve for x
    x = 389,361,495.53/28,749.21
  6. Step 6: Final answer
    x = 13,543.38

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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.