Home / 19,982.10-29,973.15-12,206.10

Finding the Fourth Proportional to 19,982.10, 29,973.15 and 12,206.10

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Solution

The fourth proportional to 19,982.10, 29,973.15 and 12,206.10 is: 18,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.10 : 29,973.15 = 12,206.10 : x
  2. Step 2: Convert to fraction form
    19,982.10/29,973.15 = 12,206.10/x
  3. Step 3: Cross multiply
    19,982.10x = 29,973.15 × 12,206.10
  4. Step 4: Simplify right side
    19,982.10x = 365,855,266.22
  5. Step 5: Solve for x
    x = 365,855,266.22/19,982.10
  6. Step 6: Final answer
    x = 18,309.15

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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.