Home / 21,330.19-31,996.75-6,549.42

Finding the Fourth Proportional to 21,330.19, 31,996.75 and 6,549.42

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Solution

The fourth proportional to 21,330.19, 31,996.75 and 6,549.42 is: 9,824.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.19 : 31,996.75 = 6,549.42 : x
  2. Step 2: Convert to fraction form
    21,330.19/31,996.75 = 6,549.42/x
  3. Step 3: Cross multiply
    21,330.19x = 31,996.75 × 6,549.42
  4. Step 4: Simplify right side
    21,330.19x = 209,560,154.39
  5. Step 5: Solve for x
    x = 209,560,154.39/21,330.19
  6. Step 6: Final answer
    x = 9,824.58

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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.