Home / 28,152.44-38,849.77-15,405.58

Finding the Fourth Proportional to 28,152.44, 38,849.77 and 15,405.58

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Solution

The fourth proportional to 28,152.44, 38,849.77 and 15,405.58 is: 21,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.44 : 38,849.77 = 15,405.58 : x
  2. Step 2: Convert to fraction form
    28,152.44/38,849.77 = 15,405.58/x
  3. Step 3: Cross multiply
    28,152.44x = 38,849.77 × 15,405.58
  4. Step 4: Simplify right side
    28,152.44x = 598,503,104.08
  5. Step 5: Solve for x
    x = 598,503,104.08/28,152.44
  6. Step 6: Final answer
    x = 21,259.37

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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.