Home / 20,423.61-30,635.42-6,383.61

Finding the Fourth Proportional to 20,423.61, 30,635.42 and 6,383.61

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Solution

The fourth proportional to 20,423.61, 30,635.42 and 6,383.61 is: 9,575.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.61 : 30,635.42 = 6,383.61 : x
  2. Step 2: Convert to fraction form
    20,423.61/30,635.42 = 6,383.61/x
  3. Step 3: Cross multiply
    20,423.61x = 30,635.42 × 6,383.61
  4. Step 4: Simplify right side
    20,423.61x = 195,564,541.55
  5. Step 5: Solve for x
    x = 195,564,541.55/20,423.61
  6. Step 6: Final answer
    x = 9,575.42

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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.