Home / 28,131.28-38,829.52-16,203.04

Finding the Fourth Proportional to 28,131.28, 38,829.52 and 16,203.04

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Solution

The fourth proportional to 28,131.28, 38,829.52 and 16,203.04 is: 22,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.28 : 38,829.52 = 16,203.04 : x
  2. Step 2: Convert to fraction form
    28,131.28/38,829.52 = 16,203.04/x
  3. Step 3: Cross multiply
    28,131.28x = 38,829.52 × 16,203.04
  4. Step 4: Simplify right side
    28,131.28x = 629,156,265.74
  5. Step 5: Solve for x
    x = 629,156,265.74/28,131.28
  6. Step 6: Final answer
    x = 22,365.01

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1.5x scale

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.