Home / 43,158.63-64,725.66-21,821.07

Finding the Fourth Proportional to 43,158.63, 64,725.66 and 21,821.07

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Solution

The fourth proportional to 43,158.63, 64,725.66 and 21,821.07 is: 32,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158.63 : 64,725.66 = 21,821.07 : x
  2. Step 2: Convert to fraction form
    43,158.63/64,725.66 = 21,821.07/x
  3. Step 3: Cross multiply
    43,158.63x = 64,725.66 × 21,821.07
  4. Step 4: Simplify right side
    43,158.63x = 1,412,383,157.66
  5. Step 5: Solve for x
    x = 1,412,383,157.66/43,158.63
  6. Step 6: Final answer
    x = 32,725.39

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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.