Home / 28,147.93-38,837.75-16,815.62

Finding the Fourth Proportional to 28,147.93, 38,837.75 and 16,815.62

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Solution

The fourth proportional to 28,147.93, 38,837.75 and 16,815.62 is: 23,201.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.93 : 38,837.75 = 16,815.62 : x
  2. Step 2: Convert to fraction form
    28,147.93/38,837.75 = 16,815.62/x
  3. Step 3: Cross multiply
    28,147.93x = 38,837.75 × 16,815.62
  4. Step 4: Simplify right side
    28,147.93x = 653,080,858.67
  5. Step 5: Solve for x
    x = 653,080,858.67/28,147.93
  6. Step 6: Final answer
    x = 23,201.74

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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.