Home / 19,123.68-28,661.16-10,808.32

Finding the Fourth Proportional to 19,123.68, 28,661.16 and 10,808.32

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Solution

The fourth proportional to 19,123.68, 28,661.16 and 10,808.32 is: 16,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.68 : 28,661.16 = 10,808.32 : x
  2. Step 2: Convert to fraction form
    19,123.68/28,661.16 = 10,808.32/x
  3. Step 3: Cross multiply
    19,123.68x = 28,661.16 × 10,808.32
  4. Step 4: Simplify right side
    19,123.68x = 309,778,950.67
  5. Step 5: Solve for x
    x = 309,778,950.67/19,123.68
  6. Step 6: Final answer
    x = 16,198.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.