Home / 19,868.32-29,779.44-18,716.32

Finding the Fourth Proportional to 19,868.32, 29,779.44 and 18,716.32

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Solution

The fourth proportional to 19,868.32, 29,779.44 and 18,716.32 is: 28,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.32 : 29,779.44 = 18,716.32 : x
  2. Step 2: Convert to fraction form
    19,868.32/29,779.44 = 18,716.32/x
  3. Step 3: Cross multiply
    19,868.32x = 29,779.44 × 18,716.32
  4. Step 4: Simplify right side
    19,868.32x = 557,361,528.46
  5. Step 5: Solve for x
    x = 557,361,528.46/19,868.32
  6. Step 6: Final answer
    x = 28,052.78

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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.