Home / 21,996.12-32,990.52-7,953.42

Finding the Fourth Proportional to 21,996.12, 32,990.52 and 7,953.42

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Solution

The fourth proportional to 21,996.12, 32,990.52 and 7,953.42 is: 11,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.12 : 32,990.52 = 7,953.42 : x
  2. Step 2: Convert to fraction form
    21,996.12/32,990.52 = 7,953.42/x
  3. Step 3: Cross multiply
    21,996.12x = 32,990.52 × 7,953.42
  4. Step 4: Simplify right side
    21,996.12x = 262,387,461.58
  5. Step 5: Solve for x
    x = 262,387,461.58/21,996.12
  6. Step 6: Final answer
    x = 11,928.81

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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.