Home / 19,620.74-27,076.68-10,668.21

Finding the Fourth Proportional to 19,620.74, 27,076.68 and 10,668.21

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Solution

The fourth proportional to 19,620.74, 27,076.68 and 10,668.21 is: 14,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.74 : 27,076.68 = 10,668.21 : x
  2. Step 2: Convert to fraction form
    19,620.74/27,076.68 = 10,668.21/x
  3. Step 3: Cross multiply
    19,620.74x = 27,076.68 × 10,668.21
  4. Step 4: Simplify right side
    19,620.74x = 288,859,708.34
  5. Step 5: Solve for x
    x = 288,859,708.34/19,620.74
  6. Step 6: Final answer
    x = 14,722.17

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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.