Home / 28,408.51-39,199.71-15,833.26

Finding the Fourth Proportional to 28,408.51, 39,199.71 and 15,833.26

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Solution

The fourth proportional to 28,408.51, 39,199.71 and 15,833.26 is: 21,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.51 : 39,199.71 = 15,833.26 : x
  2. Step 2: Convert to fraction form
    28,408.51/39,199.71 = 15,833.26/x
  3. Step 3: Cross multiply
    28,408.51x = 39,199.71 × 15,833.26
  4. Step 4: Simplify right side
    28,408.51x = 620,659,200.35
  5. Step 5: Solve for x
    x = 620,659,200.35/28,408.51
  6. Step 6: Final answer
    x = 21,847.65

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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.