Home / 28,117.26-42,183.18-8,395.38

Finding the Fourth Proportional to 28,117.26, 42,183.18 and 8,395.38

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Solution

The fourth proportional to 28,117.26, 42,183.18 and 8,395.38 is: 12,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.26 : 42,183.18 = 8,395.38 : x
  2. Step 2: Convert to fraction form
    28,117.26/42,183.18 = 8,395.38/x
  3. Step 3: Cross multiply
    28,117.26x = 42,183.18 × 8,395.38
  4. Step 4: Simplify right side
    28,117.26x = 354,143,825.71
  5. Step 5: Solve for x
    x = 354,143,825.71/28,117.26
  6. Step 6: Final answer
    x = 12,595.25

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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.