Home / 28,067.36-42,107.76-9,347.56

Finding the Fourth Proportional to 28,067.36, 42,107.76 and 9,347.56

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Solution

The fourth proportional to 28,067.36, 42,107.76 and 9,347.56 is: 14,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.36 : 42,107.76 = 9,347.56 : x
  2. Step 2: Convert to fraction form
    28,067.36/42,107.76 = 9,347.56/x
  3. Step 3: Cross multiply
    28,067.36x = 42,107.76 × 9,347.56
  4. Step 4: Simplify right side
    28,067.36x = 393,604,813.07
  5. Step 5: Solve for x
    x = 393,604,813.07/28,067.36
  6. Step 6: Final answer
    x = 14,023.58

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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.