Home / 19,623.48-29,418.62-8,521.78

Finding the Fourth Proportional to 19,623.48, 29,418.62 and 8,521.78

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Solution

The fourth proportional to 19,623.48, 29,418.62 and 8,521.78 is: 12,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.48 : 29,418.62 = 8,521.78 : x
  2. Step 2: Convert to fraction form
    19,623.48/29,418.62 = 8,521.78/x
  3. Step 3: Cross multiply
    19,623.48x = 29,418.62 × 8,521.78
  4. Step 4: Simplify right side
    19,623.48x = 250,699,007.54
  5. Step 5: Solve for x
    x = 250,699,007.54/19,623.48
  6. Step 6: Final answer
    x = 12,775.46

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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.