Home / 28,170.04-38,874.66-15,594.78

Finding the Fourth Proportional to 28,170.04, 38,874.66 and 15,594.78

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Solution

The fourth proportional to 28,170.04, 38,874.66 and 15,594.78 is: 21,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.04 : 38,874.66 = 15,594.78 : x
  2. Step 2: Convert to fraction form
    28,170.04/38,874.66 = 15,594.78/x
  3. Step 3: Cross multiply
    28,170.04x = 38,874.66 × 15,594.78
  4. Step 4: Simplify right side
    28,170.04x = 606,241,770.27
  5. Step 5: Solve for x
    x = 606,241,770.27/28,170.04
  6. Step 6: Final answer
    x = 21,520.80

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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.