Home / 43,215.39-64,824.30-13,230.27

Finding the Fourth Proportional to 43,215.39, 64,824.30 and 13,230.27

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Solution

The fourth proportional to 43,215.39, 64,824.30 and 13,230.27 is: 19,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.39 : 64,824.30 = 13,230.27 : x
  2. Step 2: Convert to fraction form
    43,215.39/64,824.30 = 13,230.27/x
  3. Step 3: Cross multiply
    43,215.39x = 64,824.30 × 13,230.27
  4. Step 4: Simplify right side
    43,215.39x = 857,642,991.56
  5. Step 5: Solve for x
    x = 857,642,991.56/43,215.39
  6. Step 6: Final answer
    x = 19,845.78

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1.5x scale

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.