Home / 21,821.85-32,732.78-7,031.06

Finding the Fourth Proportional to 21,821.85, 32,732.78 and 7,031.06

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Solution

The fourth proportional to 21,821.85, 32,732.78 and 7,031.06 is: 10,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.85 : 32,732.78 = 7,031.06 : x
  2. Step 2: Convert to fraction form
    21,821.85/32,732.78 = 7,031.06/x
  3. Step 3: Cross multiply
    21,821.85x = 32,732.78 × 7,031.06
  4. Step 4: Simplify right side
    21,821.85x = 230,145,941.33
  5. Step 5: Solve for x
    x = 230,145,941.33/21,821.85
  6. Step 6: Final answer
    x = 10,546.58

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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.