Home / 28,716.50-39,628.38-16,141.28

Finding the Fourth Proportional to 28,716.50, 39,628.38 and 16,141.28

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Solution

The fourth proportional to 28,716.50, 39,628.38 and 16,141.28 is: 22,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.50 : 39,628.38 = 16,141.28 : x
  2. Step 2: Convert to fraction form
    28,716.50/39,628.38 = 16,141.28/x
  3. Step 3: Cross multiply
    28,716.50x = 39,628.38 × 16,141.28
  4. Step 4: Simplify right side
    28,716.50x = 639,652,777.53
  5. Step 5: Solve for x
    x = 639,652,777.53/28,716.50
  6. Step 6: Final answer
    x = 22,274.75

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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.