Home / 28,087.52-42,135.36-11,448.56

Finding the Fourth Proportional to 28,087.52, 42,135.36 and 11,448.56

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Solution

The fourth proportional to 28,087.52, 42,135.36 and 11,448.56 is: 17,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.52 : 42,135.36 = 11,448.56 : x
  2. Step 2: Convert to fraction form
    28,087.52/42,135.36 = 11,448.56/x
  3. Step 3: Cross multiply
    28,087.52x = 42,135.36 × 11,448.56
  4. Step 4: Simplify right side
    28,087.52x = 482,389,197.08
  5. Step 5: Solve for x
    x = 482,389,197.08/28,087.52
  6. Step 6: Final answer
    x = 17,174.50

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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.