Home / 31,315.84-43,216.24-17,168.38

Finding the Fourth Proportional to 31,315.84, 43,216.24 and 17,168.38

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Solution

The fourth proportional to 31,315.84, 43,216.24 and 17,168.38 is: 23,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.84 : 43,216.24 = 17,168.38 : x
  2. Step 2: Convert to fraction form
    31,315.84/43,216.24 = 17,168.38/x
  3. Step 3: Cross multiply
    31,315.84x = 43,216.24 × 17,168.38
  4. Step 4: Simplify right side
    31,315.84x = 741,952,830.49
  5. Step 5: Solve for x
    x = 741,952,830.49/31,315.84
  6. Step 6: Final answer
    x = 23,692.57

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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.