Home / 17,986.85-27,012.68-17,403.65

Finding the Fourth Proportional to 17,986.85, 27,012.68 and 17,403.65

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Solution

The fourth proportional to 17,986.85, 27,012.68 and 17,403.65 is: 26,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.85 : 27,012.68 = 17,403.65 : x
  2. Step 2: Convert to fraction form
    17,986.85/27,012.68 = 17,403.65/x
  3. Step 3: Cross multiply
    17,986.85x = 27,012.68 × 17,403.65
  4. Step 4: Simplify right side
    17,986.85x = 470,119,141.26
  5. Step 5: Solve for x
    x = 470,119,141.26/17,986.85
  6. Step 6: Final answer
    x = 26,136.82

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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.