Home / 28,518.75-39,356.01-15,945.93

Finding the Fourth Proportional to 28,518.75, 39,356.01 and 15,945.93

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Solution

The fourth proportional to 28,518.75, 39,356.01 and 15,945.93 is: 22,005.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.75 : 39,356.01 = 15,945.93 : x
  2. Step 2: Convert to fraction form
    28,518.75/39,356.01 = 15,945.93/x
  3. Step 3: Cross multiply
    28,518.75x = 39,356.01 × 15,945.93
  4. Step 4: Simplify right side
    28,518.75x = 627,568,180.54
  5. Step 5: Solve for x
    x = 627,568,180.54/28,518.75
  6. Step 6: Final answer
    x = 22,005.46

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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.