Home / 28,472.97-42,709.60-18,674.29

Finding the Fourth Proportional to 28,472.97, 42,709.60 and 18,674.29

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Solution

The fourth proportional to 28,472.97, 42,709.60 and 18,674.29 is: 28,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.97 : 42,709.60 = 18,674.29 : x
  2. Step 2: Convert to fraction form
    28,472.97/42,709.60 = 18,674.29/x
  3. Step 3: Cross multiply
    28,472.97x = 42,709.60 × 18,674.29
  4. Step 4: Simplify right side
    28,472.97x = 797,571,616.35
  5. Step 5: Solve for x
    x = 797,571,616.35/28,472.97
  6. Step 6: Final answer
    x = 28,011.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.