Home / 19,981.31-27,579-12,022.04

Finding the Fourth Proportional to 19,981.31, 27,579 and 12,022.04

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Solution

The fourth proportional to 19,981.31, 27,579 and 12,022.04 is: 16,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.31 : 27,579 = 12,022.04 : x
  2. Step 2: Convert to fraction form
    19,981.31/27,579 = 12,022.04/x
  3. Step 3: Cross multiply
    19,981.31x = 27,579 × 12,022.04
  4. Step 4: Simplify right side
    19,981.31x = 331,555,703.27
  5. Step 5: Solve for x
    x = 331,555,703.27/19,981.31
  6. Step 6: Final answer
    x = 16,593.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.