Home / 28,134.44-38,823.91-15,385.14

Finding the Fourth Proportional to 28,134.44, 38,823.91 and 15,385.14

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Solution

The fourth proportional to 28,134.44, 38,823.91 and 15,385.14 is: 21,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.44 : 38,823.91 = 15,385.14 : x
  2. Step 2: Convert to fraction form
    28,134.44/38,823.91 = 15,385.14/x
  3. Step 3: Cross multiply
    28,134.44x = 38,823.91 × 15,385.14
  4. Step 4: Simplify right side
    28,134.44x = 597,311,252.23
  5. Step 5: Solve for x
    x = 597,311,252.23/28,134.44
  6. Step 6: Final answer
    x = 21,230.61

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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.