Home / 28,845.75-39,807.14-15,597.75

Finding the Fourth Proportional to 28,845.75, 39,807.14 and 15,597.75

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Solution

The fourth proportional to 28,845.75, 39,807.14 and 15,597.75 is: 21,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.75 : 39,807.14 = 15,597.75 : x
  2. Step 2: Convert to fraction form
    28,845.75/39,807.14 = 15,597.75/x
  3. Step 3: Cross multiply
    28,845.75x = 39,807.14 × 15,597.75
  4. Step 4: Simplify right side
    28,845.75x = 620,901,739.95
  5. Step 5: Solve for x
    x = 620,901,739.95/28,845.75
  6. Step 6: Final answer
    x = 21,524.90

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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.