Home / 28,183.89-42,279.95-8,464.01

Finding the Fourth Proportional to 28,183.89, 42,279.95 and 8,464.01

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Solution

The fourth proportional to 28,183.89, 42,279.95 and 8,464.01 is: 12,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.89 : 42,279.95 = 8,464.01 : x
  2. Step 2: Convert to fraction form
    28,183.89/42,279.95 = 8,464.01/x
  3. Step 3: Cross multiply
    28,183.89x = 42,279.95 × 8,464.01
  4. Step 4: Simplify right side
    28,183.89x = 357,857,729.36
  5. Step 5: Solve for x
    x = 357,857,729.36/28,183.89
  6. Step 6: Final answer
    x = 12,697.24

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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.