Home / 29,215.84-43,836.72-21,712

Finding the Fourth Proportional to 29,215.84, 43,836.72 and 21,712

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Solution

The fourth proportional to 29,215.84, 43,836.72 and 21,712 is: 32,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,215.84 : 43,836.72 = 21,712 : x
  2. Step 2: Convert to fraction form
    29,215.84/43,836.72 = 21,712/x
  3. Step 3: Cross multiply
    29,215.84x = 43,836.72 × 21,712
  4. Step 4: Simplify right side
    29,215.84x = 951,782,864.64
  5. Step 5: Solve for x
    x = 951,782,864.64/29,215.84
  6. Step 6: Final answer
    x = 32,577.63

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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.