Home / 28,147.62-38,837.36-16,814.90

Finding the Fourth Proportional to 28,147.62, 38,837.36 and 16,814.90

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Solution

The fourth proportional to 28,147.62, 38,837.36 and 16,814.90 is: 23,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.62 : 38,837.36 = 16,814.90 : x
  2. Step 2: Convert to fraction form
    28,147.62/38,837.36 = 16,814.90/x
  3. Step 3: Cross multiply
    28,147.62x = 38,837.36 × 16,814.90
  4. Step 4: Simplify right side
    28,147.62x = 653,046,324.66
  5. Step 5: Solve for x
    x = 653,046,324.66/28,147.62
  6. Step 6: Final answer
    x = 23,200.77

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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.