Home / 19,987.04-29,977.74-10,983.96

Finding the Fourth Proportional to 19,987.04, 29,977.74 and 10,983.96

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Solution

The fourth proportional to 19,987.04, 29,977.74 and 10,983.96 is: 16,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.04 : 29,977.74 = 10,983.96 : x
  2. Step 2: Convert to fraction form
    19,987.04/29,977.74 = 10,983.96/x
  3. Step 3: Cross multiply
    19,987.04x = 29,977.74 × 10,983.96
  4. Step 4: Simplify right side
    19,987.04x = 329,274,297.05
  5. Step 5: Solve for x
    x = 329,274,297.05/19,987.04
  6. Step 6: Final answer
    x = 16,474.39

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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.