Home / 19,671.05-27,145.29-10,718.62

Finding the Fourth Proportional to 19,671.05, 27,145.29 and 10,718.62

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Solution

The fourth proportional to 19,671.05, 27,145.29 and 10,718.62 is: 14,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.05 : 27,145.29 = 10,718.62 : x
  2. Step 2: Convert to fraction form
    19,671.05/27,145.29 = 10,718.62/x
  3. Step 3: Cross multiply
    19,671.05x = 27,145.29 × 10,718.62
  4. Step 4: Simplify right side
    19,671.05x = 290,960,048.30
  5. Step 5: Solve for x
    x = 290,960,048.30/19,671.05
  6. Step 6: Final answer
    x = 14,791.28

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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.