Home / 21,198.04-31,775.82-10,635.88

Finding the Fourth Proportional to 21,198.04, 31,775.82 and 10,635.88

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Solution

The fourth proportional to 21,198.04, 31,775.82 and 10,635.88 is: 15,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.04 : 31,775.82 = 10,635.88 : x
  2. Step 2: Convert to fraction form
    21,198.04/31,775.82 = 10,635.88/x
  3. Step 3: Cross multiply
    21,198.04x = 31,775.82 × 10,635.88
  4. Step 4: Simplify right side
    21,198.04x = 337,963,808.42
  5. Step 5: Solve for x
    x = 337,963,808.42/21,198.04
  6. Step 6: Final answer
    x = 15,943.16

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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.