Home / 28,408.37-39,203.75-15,833.93

Finding the Fourth Proportional to 28,408.37, 39,203.75 and 15,833.93

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Solution

The fourth proportional to 28,408.37, 39,203.75 and 15,833.93 is: 21,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.37 : 39,203.75 = 15,833.93 : x
  2. Step 2: Convert to fraction form
    28,408.37/39,203.75 = 15,833.93/x
  3. Step 3: Cross multiply
    28,408.37x = 39,203.75 × 15,833.93
  4. Step 4: Simplify right side
    28,408.37x = 620,749,354.07
  5. Step 5: Solve for x
    x = 620,749,354.07/28,408.37
  6. Step 6: Final answer
    x = 21,850.93

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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.