Home / 28,628.98-39,508.26-15,882.41

Finding the Fourth Proportional to 28,628.98, 39,508.26 and 15,882.41

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Solution

The fourth proportional to 28,628.98, 39,508.26 and 15,882.41 is: 21,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.98 : 39,508.26 = 15,882.41 : x
  2. Step 2: Convert to fraction form
    28,628.98/39,508.26 = 15,882.41/x
  3. Step 3: Cross multiply
    28,628.98x = 39,508.26 × 15,882.41
  4. Step 4: Simplify right side
    28,628.98x = 627,486,383.71
  5. Step 5: Solve for x
    x = 627,486,383.71/28,628.98
  6. Step 6: Final answer
    x = 21,917.87

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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.