Home / 20,847.62-28,767.02-11,894.58

Finding the Fourth Proportional to 20,847.62, 28,767.02 and 11,894.58

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Solution

The fourth proportional to 20,847.62, 28,767.02 and 11,894.58 is: 16,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.62 : 28,767.02 = 11,894.58 : x
  2. Step 2: Convert to fraction form
    20,847.62/28,767.02 = 11,894.58/x
  3. Step 3: Cross multiply
    20,847.62x = 28,767.02 × 11,894.58
  4. Step 4: Simplify right side
    20,847.62x = 342,171,561.28
  5. Step 5: Solve for x
    x = 342,171,561.28/20,847.62
  6. Step 6: Final answer
    x = 16,412.98

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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.