Home / 28,351.42-39,123.24-16,413.88

Finding the Fourth Proportional to 28,351.42, 39,123.24 and 16,413.88

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Solution

The fourth proportional to 28,351.42, 39,123.24 and 16,413.88 is: 22,650.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.42 : 39,123.24 = 16,413.88 : x
  2. Step 2: Convert to fraction form
    28,351.42/39,123.24 = 16,413.88/x
  3. Step 3: Cross multiply
    28,351.42x = 39,123.24 × 16,413.88
  4. Step 4: Simplify right side
    28,351.42x = 642,164,166.57
  5. Step 5: Solve for x
    x = 642,164,166.57/28,351.42
  6. Step 6: Final answer
    x = 22,650.16

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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.