Home / 27,963.18-38,582.84-20,413.62

Finding the Fourth Proportional to 27,963.18, 38,582.84 and 20,413.62

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Solution

The fourth proportional to 27,963.18, 38,582.84 and 20,413.62 is: 28,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.18 : 38,582.84 = 20,413.62 : x
  2. Step 2: Convert to fraction form
    27,963.18/38,582.84 = 20,413.62/x
  3. Step 3: Cross multiply
    27,963.18x = 38,582.84 × 20,413.62
  4. Step 4: Simplify right side
    27,963.18x = 787,615,434.28
  5. Step 5: Solve for x
    x = 787,615,434.28/27,963.18
  6. Step 6: Final answer
    x = 28,166.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.