Home / 20,262.72-30,391.56-8,574.48

Finding the Fourth Proportional to 20,262.72, 30,391.56 and 8,574.48

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Solution

The fourth proportional to 20,262.72, 30,391.56 and 8,574.48 is: 12,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.72 : 30,391.56 = 8,574.48 : x
  2. Step 2: Convert to fraction form
    20,262.72/30,391.56 = 8,574.48/x
  3. Step 3: Cross multiply
    20,262.72x = 30,391.56 × 8,574.48
  4. Step 4: Simplify right side
    20,262.72x = 260,591,823.39
  5. Step 5: Solve for x
    x = 260,591,823.39/20,262.72
  6. Step 6: Final answer
    x = 12,860.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.