Home / 19,929.13-29,895.06-6,779.79

Finding the Fourth Proportional to 19,929.13, 29,895.06 and 6,779.79

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Solution

The fourth proportional to 19,929.13, 29,895.06 and 6,779.79 is: 10,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.13 : 29,895.06 = 6,779.79 : x
  2. Step 2: Convert to fraction form
    19,929.13/29,895.06 = 6,779.79/x
  3. Step 3: Cross multiply
    19,929.13x = 29,895.06 × 6,779.79
  4. Step 4: Simplify right side
    19,929.13x = 202,682,228.84
  5. Step 5: Solve for x
    x = 202,682,228.84/19,929.13
  6. Step 6: Final answer
    x = 10,170.15

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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.