Home / 28,093.55-42,128.60-11,442.29

Finding the Fourth Proportional to 28,093.55, 42,128.60 and 11,442.29

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Solution

The fourth proportional to 28,093.55, 42,128.60 and 11,442.29 is: 17,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.55 : 42,128.60 = 11,442.29 : x
  2. Step 2: Convert to fraction form
    28,093.55/42,128.60 = 11,442.29/x
  3. Step 3: Cross multiply
    28,093.55x = 42,128.60 × 11,442.29
  4. Step 4: Simplify right side
    28,093.55x = 482,047,390.64
  5. Step 5: Solve for x
    x = 482,047,390.64/28,093.55
  6. Step 6: Final answer
    x = 17,158.65

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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.