Home / 19,699.38-27,185.14-12,625.80

Finding the Fourth Proportional to 19,699.38, 27,185.14 and 12,625.80

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Solution

The fourth proportional to 19,699.38, 27,185.14 and 12,625.80 is: 17,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.38 : 27,185.14 = 12,625.80 : x
  2. Step 2: Convert to fraction form
    19,699.38/27,185.14 = 12,625.80/x
  3. Step 3: Cross multiply
    19,699.38x = 27,185.14 × 12,625.80
  4. Step 4: Simplify right side
    19,699.38x = 343,234,109.05
  5. Step 5: Solve for x
    x = 343,234,109.05/19,699.38
  6. Step 6: Final answer
    x = 17,423.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.