Home / 28,292.26-39,043.16-15,371.43

Finding the Fourth Proportional to 28,292.26, 39,043.16 and 15,371.43

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Solution

The fourth proportional to 28,292.26, 39,043.16 and 15,371.43 is: 21,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.26 : 39,043.16 = 15,371.43 : x
  2. Step 2: Convert to fraction form
    28,292.26/39,043.16 = 15,371.43/x
  3. Step 3: Cross multiply
    28,292.26x = 39,043.16 × 15,371.43
  4. Step 4: Simplify right side
    28,292.26x = 600,149,200.92
  5. Step 5: Solve for x
    x = 600,149,200.92/28,292.26
  6. Step 6: Final answer
    x = 21,212.49

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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.