Home / 28,264.82-39,005.91-15,519.18

Finding the Fourth Proportional to 28,264.82, 39,005.91 and 15,519.18

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Solution

The fourth proportional to 28,264.82, 39,005.91 and 15,519.18 is: 21,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.82 : 39,005.91 = 15,519.18 : x
  2. Step 2: Convert to fraction form
    28,264.82/39,005.91 = 15,519.18/x
  3. Step 3: Cross multiply
    28,264.82x = 39,005.91 × 15,519.18
  4. Step 4: Simplify right side
    28,264.82x = 605,339,738.35
  5. Step 5: Solve for x
    x = 605,339,738.35/28,264.82
  6. Step 6: Final answer
    x = 21,416.72

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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.