Home / 19,111.46-28,615.35-16,749.86

Finding the Fourth Proportional to 19,111.46, 28,615.35 and 16,749.86

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Solution

The fourth proportional to 19,111.46, 28,615.35 and 16,749.86 is: 25,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.46 : 28,615.35 = 16,749.86 : x
  2. Step 2: Convert to fraction form
    19,111.46/28,615.35 = 16,749.86/x
  3. Step 3: Cross multiply
    19,111.46x = 28,615.35 × 16,749.86
  4. Step 4: Simplify right side
    19,111.46x = 479,303,106.35
  5. Step 5: Solve for x
    x = 479,303,106.35/19,111.46
  6. Step 6: Final answer
    x = 25,079.36

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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.