Home / 19,670.20-27,145.41-10,717.84

Finding the Fourth Proportional to 19,670.20, 27,145.41 and 10,717.84

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Solution

The fourth proportional to 19,670.20, 27,145.41 and 10,717.84 is: 14,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.20 : 27,145.41 = 10,717.84 : x
  2. Step 2: Convert to fraction form
    19,670.20/27,145.41 = 10,717.84/x
  3. Step 3: Cross multiply
    19,670.20x = 27,145.41 × 10,717.84
  4. Step 4: Simplify right side
    19,670.20x = 290,940,161.11
  5. Step 5: Solve for x
    x = 290,940,161.11/19,670.20
  6. Step 6: Final answer
    x = 14,790.91

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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.