Home / 28,029.40-38,694.78-18,475.54

Finding the Fourth Proportional to 28,029.40, 38,694.78 and 18,475.54

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Solution

The fourth proportional to 28,029.40, 38,694.78 and 18,475.54 is: 25,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.40 : 38,694.78 = 18,475.54 : x
  2. Step 2: Convert to fraction form
    28,029.40/38,694.78 = 18,475.54/x
  3. Step 3: Cross multiply
    28,029.40x = 38,694.78 × 18,475.54
  4. Step 4: Simplify right side
    28,029.40x = 714,906,955.68
  5. Step 5: Solve for x
    x = 714,906,955.68/28,029.40
  6. Step 6: Final answer
    x = 25,505.61

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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.