Home / 31,018.14-42,806.07-16,871.49

Finding the Fourth Proportional to 31,018.14, 42,806.07 and 16,871.49

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Solution

The fourth proportional to 31,018.14, 42,806.07 and 16,871.49 is: 23,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,018.14 : 42,806.07 = 16,871.49 : x
  2. Step 2: Convert to fraction form
    31,018.14/42,806.07 = 16,871.49/x
  3. Step 3: Cross multiply
    31,018.14x = 42,806.07 × 16,871.49
  4. Step 4: Simplify right side
    31,018.14x = 722,202,181.94
  5. Step 5: Solve for x
    x = 722,202,181.94/31,018.14
  6. Step 6: Final answer
    x = 23,283.22

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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.