Home / 28,810-39,741.68-16,871.04

Finding the Fourth Proportional to 28,810, 39,741.68 and 16,871.04

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Solution

The fourth proportional to 28,810, 39,741.68 and 16,871.04 is: 23,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810 : 39,741.68 = 16,871.04 : x
  2. Step 2: Convert to fraction form
    28,810/39,741.68 = 16,871.04/x
  3. Step 3: Cross multiply
    28,810x = 39,741.68 × 16,871.04
  4. Step 4: Simplify right side
    28,810x = 670,483,472.95
  5. Step 5: Solve for x
    x = 670,483,472.95/28,810
  6. Step 6: Final answer
    x = 23,272.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.