Home / 28,249.76-38,984.56-15,674.52

Finding the Fourth Proportional to 28,249.76, 38,984.56 and 15,674.52

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Solution

The fourth proportional to 28,249.76, 38,984.56 and 15,674.52 is: 21,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.76 : 38,984.56 = 15,674.52 : x
  2. Step 2: Convert to fraction form
    28,249.76/38,984.56 = 15,674.52/x
  3. Step 3: Cross multiply
    28,249.76x = 38,984.56 × 15,674.52
  4. Step 4: Simplify right side
    28,249.76x = 611,064,265.41
  5. Step 5: Solve for x
    x = 611,064,265.41/28,249.76
  6. Step 6: Final answer
    x = 21,630.78

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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.