Home / 28,255.24-42,382.14-13,474.60

Finding the Fourth Proportional to 28,255.24, 42,382.14 and 13,474.60

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Solution

The fourth proportional to 28,255.24, 42,382.14 and 13,474.60 is: 20,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.24 : 42,382.14 = 13,474.60 : x
  2. Step 2: Convert to fraction form
    28,255.24/42,382.14 = 13,474.60/x
  3. Step 3: Cross multiply
    28,255.24x = 42,382.14 × 13,474.60
  4. Step 4: Simplify right side
    28,255.24x = 571,082,383.64
  5. Step 5: Solve for x
    x = 571,082,383.64/28,255.24
  6. Step 6: Final answer
    x = 20,211.56

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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.