Home / 18,814.41-28,055.84-18,645.80

Finding the Fourth Proportional to 18,814.41, 28,055.84 and 18,645.80

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Solution

The fourth proportional to 18,814.41, 28,055.84 and 18,645.80 is: 27,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.41 : 28,055.84 = 18,645.80 : x
  2. Step 2: Convert to fraction form
    18,814.41/28,055.84 = 18,645.80/x
  3. Step 3: Cross multiply
    18,814.41x = 28,055.84 × 18,645.80
  4. Step 4: Simplify right side
    18,814.41x = 523,123,347.96
  5. Step 5: Solve for x
    x = 523,123,347.96/18,814.41
  6. Step 6: Final answer
    x = 27,804.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.