Home / 31,101.23-42,919.67-16,954.18

Finding the Fourth Proportional to 31,101.23, 42,919.67 and 16,954.18

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Solution

The fourth proportional to 31,101.23, 42,919.67 and 16,954.18 is: 23,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,101.23 : 42,919.67 = 16,954.18 : x
  2. Step 2: Convert to fraction form
    31,101.23/42,919.67 = 16,954.18/x
  3. Step 3: Cross multiply
    31,101.23x = 42,919.67 × 16,954.18
  4. Step 4: Simplify right side
    31,101.23x = 727,667,745.81
  5. Step 5: Solve for x
    x = 727,667,745.81/31,101.23
  6. Step 6: Final answer
    x = 23,396.75

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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.