Home / 18,836.20-26,007.78-16,503.40

Finding the Fourth Proportional to 18,836.20, 26,007.78 and 16,503.40

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Solution

The fourth proportional to 18,836.20, 26,007.78 and 16,503.40 is: 22,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.20 : 26,007.78 = 16,503.40 : x
  2. Step 2: Convert to fraction form
    18,836.20/26,007.78 = 16,503.40/x
  3. Step 3: Cross multiply
    18,836.20x = 26,007.78 × 16,503.40
  4. Step 4: Simplify right side
    18,836.20x = 429,216,796.45
  5. Step 5: Solve for x
    x = 429,216,796.45/18,836.20
  6. Step 6: Final answer
    x = 22,786.80

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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.