Home / 19,992.48-29,987.34-12,184.92

Finding the Fourth Proportional to 19,992.48, 29,987.34 and 12,184.92

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Solution

The fourth proportional to 19,992.48, 29,987.34 and 12,184.92 is: 18,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.48 : 29,987.34 = 12,184.92 : x
  2. Step 2: Convert to fraction form
    19,992.48/29,987.34 = 12,184.92/x
  3. Step 3: Cross multiply
    19,992.48x = 29,987.34 × 12,184.92
  4. Step 4: Simplify right side
    19,992.48x = 365,393,338.91
  5. Step 5: Solve for x
    x = 365,393,338.91/19,992.48
  6. Step 6: Final answer
    x = 18,276.54

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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.