Home / 20,520.54-30,775.34-5,726.86

Finding the Fourth Proportional to 20,520.54, 30,775.34 and 5,726.86

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Solution

The fourth proportional to 20,520.54, 30,775.34 and 5,726.86 is: 8,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.54 : 30,775.34 = 5,726.86 : x
  2. Step 2: Convert to fraction form
    20,520.54/30,775.34 = 5,726.86/x
  3. Step 3: Cross multiply
    20,520.54x = 30,775.34 × 5,726.86
  4. Step 4: Simplify right side
    20,520.54x = 176,246,116.42
  5. Step 5: Solve for x
    x = 176,246,116.42/20,520.54
  6. Step 6: Final answer
    x = 8,588.76

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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.