Home / 21,170.84-31,739.31-10,635.17

Finding the Fourth Proportional to 21,170.84, 31,739.31 and 10,635.17

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Solution

The fourth proportional to 21,170.84, 31,739.31 and 10,635.17 is: 15,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,170.84 : 31,739.31 = 10,635.17 : x
  2. Step 2: Convert to fraction form
    21,170.84/31,739.31 = 10,635.17/x
  3. Step 3: Cross multiply
    21,170.84x = 31,739.31 × 10,635.17
  4. Step 4: Simplify right side
    21,170.84x = 337,552,798.84
  5. Step 5: Solve for x
    x = 337,552,798.84/21,170.84
  6. Step 6: Final answer
    x = 15,944.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.