Home / 28,121.24-42,181.86-25,774.65

Finding the Fourth Proportional to 28,121.24, 42,181.86 and 25,774.65

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Solution

The fourth proportional to 28,121.24, 42,181.86 and 25,774.65 is: 38,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.24 : 42,181.86 = 25,774.65 : x
  2. Step 2: Convert to fraction form
    28,121.24/42,181.86 = 25,774.65/x
  3. Step 3: Cross multiply
    28,121.24x = 42,181.86 × 25,774.65
  4. Step 4: Simplify right side
    28,121.24x = 1,087,222,677.85
  5. Step 5: Solve for x
    x = 1,087,222,677.85/28,121.24
  6. Step 6: Final answer
    x = 38,661.98

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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.