Home / 19,480.74-29,200.15-8,392.65

Finding the Fourth Proportional to 19,480.74, 29,200.15 and 8,392.65

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Solution

The fourth proportional to 19,480.74, 29,200.15 and 8,392.65 is: 12,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.74 : 29,200.15 = 8,392.65 : x
  2. Step 2: Convert to fraction form
    19,480.74/29,200.15 = 8,392.65/x
  3. Step 3: Cross multiply
    19,480.74x = 29,200.15 × 8,392.65
  4. Step 4: Simplify right side
    19,480.74x = 245,066,596.93
  5. Step 5: Solve for x
    x = 245,066,596.93/19,480.74
  6. Step 6: Final answer
    x = 12,579.94

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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.