Home / 28,618.03-42,915.16-11,077.75

Finding the Fourth Proportional to 28,618.03, 42,915.16 and 11,077.75

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Solution

The fourth proportional to 28,618.03, 42,915.16 and 11,077.75 is: 16,612.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.03 : 42,915.16 = 11,077.75 : x
  2. Step 2: Convert to fraction form
    28,618.03/42,915.16 = 11,077.75/x
  3. Step 3: Cross multiply
    28,618.03x = 42,915.16 × 11,077.75
  4. Step 4: Simplify right side
    28,618.03x = 475,403,413.69
  5. Step 5: Solve for x
    x = 475,403,413.69/28,618.03
  6. Step 6: Final answer
    x = 16,612.02

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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.