Home / 19,987.43-29,994.48-8,300.66

Finding the Fourth Proportional to 19,987.43, 29,994.48 and 8,300.66

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Solution

The fourth proportional to 19,987.43, 29,994.48 and 8,300.66 is: 12,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.43 : 29,994.48 = 8,300.66 : x
  2. Step 2: Convert to fraction form
    19,987.43/29,994.48 = 8,300.66/x
  3. Step 3: Cross multiply
    19,987.43x = 29,994.48 × 8,300.66
  4. Step 4: Simplify right side
    19,987.43x = 248,973,830.38
  5. Step 5: Solve for x
    x = 248,973,830.38/19,987.43
  6. Step 6: Final answer
    x = 12,456.52

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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.