Home / 20,962.50-31,434.53-11,099.48

Finding the Fourth Proportional to 20,962.50, 31,434.53 and 11,099.48

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Solution

The fourth proportional to 20,962.50, 31,434.53 and 11,099.48 is: 16,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.50 : 31,434.53 = 11,099.48 : x
  2. Step 2: Convert to fraction form
    20,962.50/31,434.53 = 11,099.48/x
  3. Step 3: Cross multiply
    20,962.50x = 31,434.53 × 11,099.48
  4. Step 4: Simplify right side
    20,962.50x = 348,906,724.37
  5. Step 5: Solve for x
    x = 348,906,724.37/20,962.50
  6. Step 6: Final answer
    x = 16,644.33

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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.