Home / 28,181.98-38,892.36-15,606.73

Finding the Fourth Proportional to 28,181.98, 38,892.36 and 15,606.73

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Solution

The fourth proportional to 28,181.98, 38,892.36 and 15,606.73 is: 21,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.98 : 38,892.36 = 15,606.73 : x
  2. Step 2: Convert to fraction form
    28,181.98/38,892.36 = 15,606.73/x
  3. Step 3: Cross multiply
    28,181.98x = 38,892.36 × 15,606.73
  4. Step 4: Simplify right side
    28,181.98x = 606,982,561.58
  5. Step 5: Solve for x
    x = 606,982,561.58/28,181.98
  6. Step 6: Final answer
    x = 21,537.97

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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.