Home / 19,121.84-28,671.56-5,790.88

Finding the Fourth Proportional to 19,121.84, 28,671.56 and 5,790.88

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Solution

The fourth proportional to 19,121.84, 28,671.56 and 5,790.88 is: 8,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.84 : 28,671.56 = 5,790.88 : x
  2. Step 2: Convert to fraction form
    19,121.84/28,671.56 = 5,790.88/x
  3. Step 3: Cross multiply
    19,121.84x = 28,671.56 × 5,790.88
  4. Step 4: Simplify right side
    19,121.84x = 166,033,563.37
  5. Step 5: Solve for x
    x = 166,033,563.37/19,121.84
  6. Step 6: Final answer
    x = 8,682.93

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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.