Home / 20,106.16-29,996-19,017.52

Finding the Fourth Proportional to 20,106.16, 29,996 and 19,017.52

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Solution

The fourth proportional to 20,106.16, 29,996 and 19,017.52 is: 28,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.16 : 29,996 = 19,017.52 : x
  2. Step 2: Convert to fraction form
    20,106.16/29,996 = 19,017.52/x
  3. Step 3: Cross multiply
    20,106.16x = 29,996 × 19,017.52
  4. Step 4: Simplify right side
    20,106.16x = 570,449,529.92
  5. Step 5: Solve for x
    x = 570,449,529.92/20,106.16
  6. Step 6: Final answer
    x = 28,371.88

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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.