Home / 21,425.40-32,103.54-11,005.56

Finding the Fourth Proportional to 21,425.40, 32,103.54 and 11,005.56

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Solution

The fourth proportional to 21,425.40, 32,103.54 and 11,005.56 is: 16,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.40 : 32,103.54 = 11,005.56 : x
  2. Step 2: Convert to fraction form
    21,425.40/32,103.54 = 11,005.56/x
  3. Step 3: Cross multiply
    21,425.40x = 32,103.54 × 11,005.56
  4. Step 4: Simplify right side
    21,425.40x = 353,317,435.68
  5. Step 5: Solve for x
    x = 353,317,435.68/21,425.40
  6. Step 6: Final answer
    x = 16,490.59

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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.