Home / 28,197.26-38,912.17-15,622.02

Finding the Fourth Proportional to 28,197.26, 38,912.17 and 15,622.02

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Solution

The fourth proportional to 28,197.26, 38,912.17 and 15,622.02 is: 21,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.26 : 38,912.17 = 15,622.02 : x
  2. Step 2: Convert to fraction form
    28,197.26/38,912.17 = 15,622.02/x
  3. Step 3: Cross multiply
    28,197.26x = 38,912.17 × 15,622.02
  4. Step 4: Simplify right side
    28,197.26x = 607,886,697.98
  5. Step 5: Solve for x
    x = 607,886,697.98/28,197.26
  6. Step 6: Final answer
    x = 21,558.36

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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.