Home / 43,136.82-64,708.02-13,555.89

Finding the Fourth Proportional to 43,136.82, 64,708.02 and 13,555.89

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Solution

The fourth proportional to 43,136.82, 64,708.02 and 13,555.89 is: 20,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,136.82 : 64,708.02 = 13,555.89 : x
  2. Step 2: Convert to fraction form
    43,136.82/64,708.02 = 13,555.89/x
  3. Step 3: Cross multiply
    43,136.82x = 64,708.02 × 13,555.89
  4. Step 4: Simplify right side
    43,136.82x = 877,174,801.24
  5. Step 5: Solve for x
    x = 877,174,801.24/43,136.82
  6. Step 6: Final answer
    x = 20,334.71

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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.