Home / 28,067.40-42,100.20-9,348.30

Finding the Fourth Proportional to 28,067.40, 42,100.20 and 9,348.30

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Solution

The fourth proportional to 28,067.40, 42,100.20 and 9,348.30 is: 14,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.40 : 42,100.20 = 9,348.30 : x
  2. Step 2: Convert to fraction form
    28,067.40/42,100.20 = 9,348.30/x
  3. Step 3: Cross multiply
    28,067.40x = 42,100.20 × 9,348.30
  4. Step 4: Simplify right side
    28,067.40x = 393,565,299.66
  5. Step 5: Solve for x
    x = 393,565,299.66/28,067.40
  6. Step 6: Final answer
    x = 14,022.15

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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.