Home / 28,171.52-38,877.84-15,596.36

Finding the Fourth Proportional to 28,171.52, 38,877.84 and 15,596.36

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Solution

The fourth proportional to 28,171.52, 38,877.84 and 15,596.36 is: 21,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.52 : 38,877.84 = 15,596.36 : x
  2. Step 2: Convert to fraction form
    28,171.52/38,877.84 = 15,596.36/x
  3. Step 3: Cross multiply
    28,171.52x = 38,877.84 × 15,596.36
  4. Step 4: Simplify right side
    28,171.52x = 606,352,788.66
  5. Step 5: Solve for x
    x = 606,352,788.66/28,171.52
  6. Step 6: Final answer
    x = 21,523.61

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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.