Home / 20,968.80-28,933.65-12,014.58

Finding the Fourth Proportional to 20,968.80, 28,933.65 and 12,014.58

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Solution

The fourth proportional to 20,968.80, 28,933.65 and 12,014.58 is: 16,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.80 : 28,933.65 = 12,014.58 : x
  2. Step 2: Convert to fraction form
    20,968.80/28,933.65 = 12,014.58/x
  3. Step 3: Cross multiply
    20,968.80x = 28,933.65 × 12,014.58
  4. Step 4: Simplify right side
    20,968.80x = 347,625,652.62
  5. Step 5: Solve for x
    x = 347,625,652.62/20,968.80
  6. Step 6: Final answer
    x = 16,578.23

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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.