Home / 30,578.11-42,197.63-16,966.02

Finding the Fourth Proportional to 30,578.11, 42,197.63 and 16,966.02

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Solution

The fourth proportional to 30,578.11, 42,197.63 and 16,966.02 is: 23,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.11 : 42,197.63 = 16,966.02 : x
  2. Step 2: Convert to fraction form
    30,578.11/42,197.63 = 16,966.02/x
  3. Step 3: Cross multiply
    30,578.11x = 42,197.63 × 16,966.02
  4. Step 4: Simplify right side
    30,578.11x = 715,925,907.94
  5. Step 5: Solve for x
    x = 715,925,907.94/30,578.11
  6. Step 6: Final answer
    x = 23,413.02

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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.