Home / 28,738.80-43,078.64-15,563.34

Finding the Fourth Proportional to 28,738.80, 43,078.64 and 15,563.34

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Solution

The fourth proportional to 28,738.80, 43,078.64 and 15,563.34 is: 23,329.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.80 : 43,078.64 = 15,563.34 : x
  2. Step 2: Convert to fraction form
    28,738.80/43,078.64 = 15,563.34/x
  3. Step 3: Cross multiply
    28,738.80x = 43,078.64 × 15,563.34
  4. Step 4: Simplify right side
    28,738.80x = 670,447,443.24
  5. Step 5: Solve for x
    x = 670,447,443.24/28,738.80
  6. Step 6: Final answer
    x = 23,329.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.