Home / 28,174.14-42,268.23-8,453.06

Finding the Fourth Proportional to 28,174.14, 42,268.23 and 8,453.06

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Solution

The fourth proportional to 28,174.14, 42,268.23 and 8,453.06 is: 12,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.14 : 42,268.23 = 8,453.06 : x
  2. Step 2: Convert to fraction form
    28,174.14/42,268.23 = 8,453.06/x
  3. Step 3: Cross multiply
    28,174.14x = 42,268.23 × 8,453.06
  4. Step 4: Simplify right side
    28,174.14x = 357,295,884.28
  5. Step 5: Solve for x
    x = 357,295,884.28/28,174.14
  6. Step 6: Final answer
    x = 12,681.70

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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.