Home / 19,120.14-28,680.21-5,973.55

Finding the Fourth Proportional to 19,120.14, 28,680.21 and 5,973.55

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Solution

The fourth proportional to 19,120.14, 28,680.21 and 5,973.55 is: 8,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.14 : 28,680.21 = 5,973.55 : x
  2. Step 2: Convert to fraction form
    19,120.14/28,680.21 = 5,973.55/x
  3. Step 3: Cross multiply
    19,120.14x = 28,680.21 × 5,973.55
  4. Step 4: Simplify right side
    19,120.14x = 171,322,495.18
  5. Step 5: Solve for x
    x = 171,322,495.18/19,120.14
  6. Step 6: Final answer
    x = 8,960.32

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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.