Home / 14,105.32-21,155.23-5,340.92

Finding the Fourth Proportional to 14,105.32, 21,155.23 and 5,340.92

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Solution

The fourth proportional to 14,105.32, 21,155.23 and 5,340.92 is: 8,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.32 : 21,155.23 = 5,340.92 : x
  2. Step 2: Convert to fraction form
    14,105.32/21,155.23 = 5,340.92/x
  3. Step 3: Cross multiply
    14,105.32x = 21,155.23 × 5,340.92
  4. Step 4: Simplify right side
    14,105.32x = 112,988,271.88
  5. Step 5: Solve for x
    x = 112,988,271.88/14,105.32
  6. Step 6: Final answer
    x = 8,010.33

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