Home / 20,420.01-30,632.11-5,628.92

Finding the Fourth Proportional to 20,420.01, 30,632.11 and 5,628.92

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Solution

The fourth proportional to 20,420.01, 30,632.11 and 5,628.92 is: 8,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,420.01 : 30,632.11 = 5,628.92 : x
  2. Step 2: Convert to fraction form
    20,420.01/30,632.11 = 5,628.92/x
  3. Step 3: Cross multiply
    20,420.01x = 30,632.11 × 5,628.92
  4. Step 4: Simplify right side
    20,420.01x = 172,425,529.39
  5. Step 5: Solve for x
    x = 172,425,529.39/20,420.01
  6. Step 6: Final answer
    x = 8,443.95

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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.