Home / 19,982.72-29,987.45-8,295.93

Finding the Fourth Proportional to 19,982.72, 29,987.45 and 8,295.93

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Solution

The fourth proportional to 19,982.72, 29,987.45 and 8,295.93 is: 12,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.72 : 29,987.45 = 8,295.93 : x
  2. Step 2: Convert to fraction form
    19,982.72/29,987.45 = 8,295.93/x
  3. Step 3: Cross multiply
    19,982.72x = 29,987.45 × 8,295.93
  4. Step 4: Simplify right side
    19,982.72x = 248,773,744.60
  5. Step 5: Solve for x
    x = 248,773,744.60/19,982.72
  6. Step 6: Final answer
    x = 12,449.45

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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.