Home / 16,920.44-23,339.38-13,571.30

Finding the Fourth Proportional to 16,920.44, 23,339.38 and 13,571.30

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Solution

The fourth proportional to 16,920.44, 23,339.38 and 13,571.30 is: 18,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.44 : 23,339.38 = 13,571.30 : x
  2. Step 2: Convert to fraction form
    16,920.44/23,339.38 = 13,571.30/x
  3. Step 3: Cross multiply
    16,920.44x = 23,339.38 × 13,571.30
  4. Step 4: Simplify right side
    16,920.44x = 316,745,611.10
  5. Step 5: Solve for x
    x = 316,745,611.10/16,920.44
  6. Step 6: Final answer
    x = 18,719.70

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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.