Home / 31,072.68-42,880.14-16,926.12

Finding the Fourth Proportional to 31,072.68, 42,880.14 and 16,926.12

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Solution

The fourth proportional to 31,072.68, 42,880.14 and 16,926.12 is: 23,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,072.68 : 42,880.14 = 16,926.12 : x
  2. Step 2: Convert to fraction form
    31,072.68/42,880.14 = 16,926.12/x
  3. Step 3: Cross multiply
    31,072.68x = 42,880.14 × 16,926.12
  4. Step 4: Simplify right side
    31,072.68x = 725,794,395.26
  5. Step 5: Solve for x
    x = 725,794,395.26/31,072.68
  6. Step 6: Final answer
    x = 23,357.96

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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.