Home / 28,115.44-42,140.35-15,629.49

Finding the Fourth Proportional to 28,115.44, 42,140.35 and 15,629.49

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Solution

The fourth proportional to 28,115.44, 42,140.35 and 15,629.49 is: 23,426.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.44 : 42,140.35 = 15,629.49 : x
  2. Step 2: Convert to fraction form
    28,115.44/42,140.35 = 15,629.49/x
  3. Step 3: Cross multiply
    28,115.44x = 42,140.35 × 15,629.49
  4. Step 4: Simplify right side
    28,115.44x = 658,632,198.46
  5. Step 5: Solve for x
    x = 658,632,198.46/28,115.44
  6. Step 6: Final answer
    x = 23,426.00

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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.