Home / 23,136.96-31,932-13,202.88

Finding the Fourth Proportional to 23,136.96, 31,932 and 13,202.88

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Solution

The fourth proportional to 23,136.96, 31,932 and 13,202.88 is: 18,221.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,136.96 : 31,932 = 13,202.88 : x
  2. Step 2: Convert to fraction form
    23,136.96/31,932 = 13,202.88/x
  3. Step 3: Cross multiply
    23,136.96x = 31,932 × 13,202.88
  4. Step 4: Simplify right side
    23,136.96x = 421,594,364.16
  5. Step 5: Solve for x
    x = 421,594,364.16/23,136.96
  6. Step 6: Final answer
    x = 18,221.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.