Home / 28,725.50-39,628.24-16,783.47

Finding the Fourth Proportional to 28,725.50, 39,628.24 and 16,783.47

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Solution

The fourth proportional to 28,725.50, 39,628.24 and 16,783.47 is: 23,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.50 : 39,628.24 = 16,783.47 : x
  2. Step 2: Convert to fraction form
    28,725.50/39,628.24 = 16,783.47/x
  3. Step 3: Cross multiply
    28,725.50x = 39,628.24 × 16,783.47
  4. Step 4: Simplify right side
    28,725.50x = 665,099,335.23
  5. Step 5: Solve for x
    x = 665,099,335.23/28,725.50
  6. Step 6: Final answer
    x = 23,153.62

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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.