Home / 19,668.85-27,142.21-10,716.41

Finding the Fourth Proportional to 19,668.85, 27,142.21 and 10,716.41

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Solution

The fourth proportional to 19,668.85, 27,142.21 and 10,716.41 is: 14,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.85 : 27,142.21 = 10,716.41 : x
  2. Step 2: Convert to fraction form
    19,668.85/27,142.21 = 10,716.41/x
  3. Step 3: Cross multiply
    19,668.85x = 27,142.21 × 10,716.41
  4. Step 4: Simplify right side
    19,668.85x = 290,867,050.67
  5. Step 5: Solve for x
    x = 290,867,050.67/19,668.85
  6. Step 6: Final answer
    x = 14,788.21

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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.