Home / 28,401.44-39,194.64-15,826.96

Finding the Fourth Proportional to 28,401.44, 39,194.64 and 15,826.96

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Solution

The fourth proportional to 28,401.44, 39,194.64 and 15,826.96 is: 21,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.44 : 39,194.64 = 15,826.96 : x
  2. Step 2: Convert to fraction form
    28,401.44/39,194.64 = 15,826.96/x
  3. Step 3: Cross multiply
    28,401.44x = 39,194.64 × 15,826.96
  4. Step 4: Simplify right side
    28,401.44x = 620,331,999.49
  5. Step 5: Solve for x
    x = 620,331,999.49/28,401.44
  6. Step 6: Final answer
    x = 21,841.57

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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.