Home / 28,063.91-38,728.56-16,579.20

Finding the Fourth Proportional to 28,063.91, 38,728.56 and 16,579.20

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Solution

The fourth proportional to 28,063.91, 38,728.56 and 16,579.20 is: 22,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.91 : 38,728.56 = 16,579.20 : x
  2. Step 2: Convert to fraction form
    28,063.91/38,728.56 = 16,579.20/x
  3. Step 3: Cross multiply
    28,063.91x = 38,728.56 × 16,579.20
  4. Step 4: Simplify right side
    28,063.91x = 642,088,438.25
  5. Step 5: Solve for x
    x = 642,088,438.25/28,063.91
  6. Step 6: Final answer
    x = 22,879.51

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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.