Home / 43,215.04-64,822.56-13,635.87

Finding the Fourth Proportional to 43,215.04, 64,822.56 and 13,635.87

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Solution

The fourth proportional to 43,215.04, 64,822.56 and 13,635.87 is: 20,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.04 : 64,822.56 = 13,635.87 : x
  2. Step 2: Convert to fraction form
    43,215.04/64,822.56 = 13,635.87/x
  3. Step 3: Cross multiply
    43,215.04x = 64,822.56 × 13,635.87
  4. Step 4: Simplify right side
    43,215.04x = 883,912,001.23
  5. Step 5: Solve for x
    x = 883,912,001.23/43,215.04
  6. Step 6: Final answer
    x = 20,453.81

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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.