Home / 18,939.51-28,413.43-5,792.91

Finding the Fourth Proportional to 18,939.51, 28,413.43 and 5,792.91

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Solution

The fourth proportional to 18,939.51, 28,413.43 and 5,792.91 is: 8,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.51 : 28,413.43 = 5,792.91 : x
  2. Step 2: Convert to fraction form
    18,939.51/28,413.43 = 5,792.91/x
  3. Step 3: Cross multiply
    18,939.51x = 28,413.43 × 5,792.91
  4. Step 4: Simplify right side
    18,939.51x = 164,596,442.78
  5. Step 5: Solve for x
    x = 164,596,442.78/18,939.51
  6. Step 6: Final answer
    x = 8,690.64

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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.