Home / 28,725.08-39,638.58-16,151.72

Finding the Fourth Proportional to 28,725.08, 39,638.58 and 16,151.72

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Solution

The fourth proportional to 28,725.08, 39,638.58 and 16,151.72 is: 22,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.08 : 39,638.58 = 16,151.72 : x
  2. Step 2: Convert to fraction form
    28,725.08/39,638.58 = 16,151.72/x
  3. Step 3: Cross multiply
    28,725.08x = 39,638.58 × 16,151.72
  4. Step 4: Simplify right side
    28,725.08x = 640,231,245.36
  5. Step 5: Solve for x
    x = 640,231,245.36/28,725.08
  6. Step 6: Final answer
    x = 22,288.23

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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.