Home / 20,076.48-30,117.76-6,932.64

Finding the Fourth Proportional to 20,076.48, 30,117.76 and 6,932.64

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Solution

The fourth proportional to 20,076.48, 30,117.76 and 6,932.64 is: 10,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.48 : 30,117.76 = 6,932.64 : x
  2. Step 2: Convert to fraction form
    20,076.48/30,117.76 = 6,932.64/x
  3. Step 3: Cross multiply
    20,076.48x = 30,117.76 × 6,932.64
  4. Step 4: Simplify right side
    20,076.48x = 208,795,587.69
  5. Step 5: Solve for x
    x = 208,795,587.69/20,076.48
  6. Step 6: Final answer
    x = 10,400.01

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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.