Home / 19,120.51-28,680.77-5,973.92

Finding the Fourth Proportional to 19,120.51, 28,680.77 and 5,973.92

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Solution

The fourth proportional to 19,120.51, 28,680.77 and 5,973.92 is: 8,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.51 : 28,680.77 = 5,973.92 : x
  2. Step 2: Convert to fraction form
    19,120.51/28,680.77 = 5,973.92/x
  3. Step 3: Cross multiply
    19,120.51x = 28,680.77 × 5,973.92
  4. Step 4: Simplify right side
    19,120.51x = 171,336,523.95
  5. Step 5: Solve for x
    x = 171,336,523.95/19,120.51
  6. Step 6: Final answer
    x = 8,960.88

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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.