Home / 21,631.67-32,457.49-8,487.53

Finding the Fourth Proportional to 21,631.67, 32,457.49 and 8,487.53

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Solution

The fourth proportional to 21,631.67, 32,457.49 and 8,487.53 is: 12,735.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.67 : 32,457.49 = 8,487.53 : x
  2. Step 2: Convert to fraction form
    21,631.67/32,457.49 = 8,487.53/x
  3. Step 3: Cross multiply
    21,631.67x = 32,457.49 × 8,487.53
  4. Step 4: Simplify right side
    21,631.67x = 275,483,736.59
  5. Step 5: Solve for x
    x = 275,483,736.59/21,631.67
  6. Step 6: Final answer
    x = 12,735.21

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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.