Home / 20,946.90-31,383.45-11,064.41

Finding the Fourth Proportional to 20,946.90, 31,383.45 and 11,064.41

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Solution

The fourth proportional to 20,946.90, 31,383.45 and 11,064.41 is: 16,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.90 : 31,383.45 = 11,064.41 : x
  2. Step 2: Convert to fraction form
    20,946.90/31,383.45 = 11,064.41/x
  3. Step 3: Cross multiply
    20,946.90x = 31,383.45 × 11,064.41
  4. Step 4: Simplify right side
    20,946.90x = 347,239,201.10
  5. Step 5: Solve for x
    x = 347,239,201.10/20,946.90
  6. Step 6: Final answer
    x = 16,577.12

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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.