Home / 28,325.37-39,087.41-15,749.85

Finding the Fourth Proportional to 28,325.37, 39,087.41 and 15,749.85

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Solution

The fourth proportional to 28,325.37, 39,087.41 and 15,749.85 is: 21,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.37 : 39,087.41 = 15,749.85 : x
  2. Step 2: Convert to fraction form
    28,325.37/39,087.41 = 15,749.85/x
  3. Step 3: Cross multiply
    28,325.37x = 39,087.41 × 15,749.85
  4. Step 4: Simplify right side
    28,325.37x = 615,620,765.64
  5. Step 5: Solve for x
    x = 615,620,765.64/28,325.37
  6. Step 6: Final answer
    x = 21,733.90

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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.