Home / 28,550.07-39,400.83-15,803.37

Finding the Fourth Proportional to 28,550.07, 39,400.83 and 15,803.37

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Solution

The fourth proportional to 28,550.07, 39,400.83 and 15,803.37 is: 21,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.07 : 39,400.83 = 15,803.37 : x
  2. Step 2: Convert to fraction form
    28,550.07/39,400.83 = 15,803.37/x
  3. Step 3: Cross multiply
    28,550.07x = 39,400.83 × 15,803.37
  4. Step 4: Simplify right side
    28,550.07x = 622,665,894.80
  5. Step 5: Solve for x
    x = 622,665,894.80/28,550.07
  6. Step 6: Final answer
    x = 21,809.61

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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.