Home / 22,779.80-34,169.70-11,115.80

Finding the Fourth Proportional to 22,779.80, 34,169.70 and 11,115.80

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Solution

The fourth proportional to 22,779.80, 34,169.70 and 11,115.80 is: 16,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.80 : 34,169.70 = 11,115.80 : x
  2. Step 2: Convert to fraction form
    22,779.80/34,169.70 = 11,115.80/x
  3. Step 3: Cross multiply
    22,779.80x = 34,169.70 × 11,115.80
  4. Step 4: Simplify right side
    22,779.80x = 379,823,551.26
  5. Step 5: Solve for x
    x = 379,823,551.26/22,779.80
  6. Step 6: Final answer
    x = 16,673.70

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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.