Home / 28,103.36-42,150.45-9,382.64

Finding the Fourth Proportional to 28,103.36, 42,150.45 and 9,382.64

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Solution

The fourth proportional to 28,103.36, 42,150.45 and 9,382.64 is: 14,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.36 : 42,150.45 = 9,382.64 : x
  2. Step 2: Convert to fraction form
    28,103.36/42,150.45 = 9,382.64/x
  3. Step 3: Cross multiply
    28,103.36x = 42,150.45 × 9,382.64
  4. Step 4: Simplify right side
    28,103.36x = 395,482,498.19
  5. Step 5: Solve for x
    x = 395,482,498.19/28,103.36
  6. Step 6: Final answer
    x = 14,072.43

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1.5x scale

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.