Home / 20,717.68-31,054.14-10,175.44

Finding the Fourth Proportional to 20,717.68, 31,054.14 and 10,175.44

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Solution

The fourth proportional to 20,717.68, 31,054.14 and 10,175.44 is: 15,252.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.68 : 31,054.14 = 10,175.44 : x
  2. Step 2: Convert to fraction form
    20,717.68/31,054.14 = 10,175.44/x
  3. Step 3: Cross multiply
    20,717.68x = 31,054.14 × 10,175.44
  4. Step 4: Simplify right side
    20,717.68x = 315,989,538.32
  5. Step 5: Solve for x
    x = 315,989,538.32/20,717.68
  6. Step 6: Final answer
    x = 15,252.17

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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.