Home / 19,943.10-29,857.05-12,167.10

Finding the Fourth Proportional to 19,943.10, 29,857.05 and 12,167.10

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Solution

The fourth proportional to 19,943.10, 29,857.05 and 12,167.10 is: 18,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.10 : 29,857.05 = 12,167.10 : x
  2. Step 2: Convert to fraction form
    19,943.10/29,857.05 = 12,167.10/x
  3. Step 3: Cross multiply
    19,943.10x = 29,857.05 × 12,167.10
  4. Step 4: Simplify right side
    19,943.10x = 363,273,713.06
  5. Step 5: Solve for x
    x = 363,273,713.06/19,943.10
  6. Step 6: Final answer
    x = 18,215.51

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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.