Home / 28,199.58-38,912.82-16,260.61

Finding the Fourth Proportional to 28,199.58, 38,912.82 and 16,260.61

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Solution

The fourth proportional to 28,199.58, 38,912.82 and 16,260.61 is: 22,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.58 : 38,912.82 = 16,260.61 : x
  2. Step 2: Convert to fraction form
    28,199.58/38,912.82 = 16,260.61/x
  3. Step 3: Cross multiply
    28,199.58x = 38,912.82 × 16,260.61
  4. Step 4: Simplify right side
    28,199.58x = 632,745,995.46
  5. Step 5: Solve for x
    x = 632,745,995.46/28,199.58
  6. Step 6: Final answer
    x = 22,438.14

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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.