Home / 20,953.54-31,423.58-6,910.41

Finding the Fourth Proportional to 20,953.54, 31,423.58 and 6,910.41

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Solution

The fourth proportional to 20,953.54, 31,423.58 and 6,910.41 is: 10,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.54 : 31,423.58 = 6,910.41 : x
  2. Step 2: Convert to fraction form
    20,953.54/31,423.58 = 6,910.41/x
  3. Step 3: Cross multiply
    20,953.54x = 31,423.58 × 6,910.41
  4. Step 4: Simplify right side
    20,953.54x = 217,149,664.35
  5. Step 5: Solve for x
    x = 217,149,664.35/20,953.54
  6. Step 6: Final answer
    x = 10,363.39

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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.