Home / 20,461.92-30,693.30-6,421.66

Finding the Fourth Proportional to 20,461.92, 30,693.30 and 6,421.66

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Solution

The fourth proportional to 20,461.92, 30,693.30 and 6,421.66 is: 9,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.92 : 30,693.30 = 6,421.66 : x
  2. Step 2: Convert to fraction form
    20,461.92/30,693.30 = 6,421.66/x
  3. Step 3: Cross multiply
    20,461.92x = 30,693.30 × 6,421.66
  4. Step 4: Simplify right side
    20,461.92x = 197,101,936.88
  5. Step 5: Solve for x
    x = 197,101,936.88/20,461.92
  6. Step 6: Final answer
    x = 9,632.62

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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.