Home / 20,046.31-27,632.04-15,790.63

Finding the Fourth Proportional to 20,046.31, 27,632.04 and 15,790.63

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Solution

The fourth proportional to 20,046.31, 27,632.04 and 15,790.63 is: 21,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,046.31 : 27,632.04 = 15,790.63 : x
  2. Step 2: Convert to fraction form
    20,046.31/27,632.04 = 15,790.63/x
  3. Step 3: Cross multiply
    20,046.31x = 27,632.04 × 15,790.63
  4. Step 4: Simplify right side
    20,046.31x = 436,327,428.34
  5. Step 5: Solve for x
    x = 436,327,428.34/20,046.31
  6. Step 6: Final answer
    x = 21,765.97

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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.