Home / 28,546.30-39,393.96-15,800.36

Finding the Fourth Proportional to 28,546.30, 39,393.96 and 15,800.36

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Solution

The fourth proportional to 28,546.30, 39,393.96 and 15,800.36 is: 21,804.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.30 : 39,393.96 = 15,800.36 : x
  2. Step 2: Convert to fraction form
    28,546.30/39,393.96 = 15,800.36/x
  3. Step 3: Cross multiply
    28,546.30x = 39,393.96 × 15,800.36
  4. Step 4: Simplify right side
    28,546.30x = 622,438,749.83
  5. Step 5: Solve for x
    x = 622,438,749.83/28,546.30
  6. Step 6: Final answer
    x = 21,804.53

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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.