Home / 28,199.04-38,913.55-16,861.84

Finding the Fourth Proportional to 28,199.04, 38,913.55 and 16,861.84

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Solution

The fourth proportional to 28,199.04, 38,913.55 and 16,861.84 is: 23,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.04 : 38,913.55 = 16,861.84 : x
  2. Step 2: Convert to fraction form
    28,199.04/38,913.55 = 16,861.84/x
  3. Step 3: Cross multiply
    28,199.04x = 38,913.55 × 16,861.84
  4. Step 4: Simplify right side
    28,199.04x = 656,153,914.49
  5. Step 5: Solve for x
    x = 656,153,914.49/28,199.04
  6. Step 6: Final answer
    x = 23,268.66

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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.