Home / 19,120.39-28,680.58-5,973.88

Finding the Fourth Proportional to 19,120.39, 28,680.58 and 5,973.88

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Solution

The fourth proportional to 19,120.39, 28,680.58 and 5,973.88 is: 8,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.39 : 28,680.58 = 5,973.88 : x
  2. Step 2: Convert to fraction form
    19,120.39/28,680.58 = 5,973.88/x
  3. Step 3: Cross multiply
    19,120.39x = 28,680.58 × 5,973.88
  4. Step 4: Simplify right side
    19,120.39x = 171,334,343.25
  5. Step 5: Solve for x
    x = 171,334,343.25/19,120.39
  6. Step 6: Final answer
    x = 8,960.82

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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.