Home / 30,228.80-41,715.52-16,801.28

Finding the Fourth Proportional to 30,228.80, 41,715.52 and 16,801.28

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Solution

The fourth proportional to 30,228.80, 41,715.52 and 16,801.28 is: 23,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.80 : 41,715.52 = 16,801.28 : x
  2. Step 2: Convert to fraction form
    30,228.80/41,715.52 = 16,801.28/x
  3. Step 3: Cross multiply
    30,228.80x = 41,715.52 × 16,801.28
  4. Step 4: Simplify right side
    30,228.80x = 700,874,131.87
  5. Step 5: Solve for x
    x = 700,874,131.87/30,228.80
  6. Step 6: Final answer
    x = 23,185.64

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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.