Home / 19,589.49-27,020.10-12,512.79

Finding the Fourth Proportional to 19,589.49, 27,020.10 and 12,512.79

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Solution

The fourth proportional to 19,589.49, 27,020.10 and 12,512.79 is: 17,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.49 : 27,020.10 = 12,512.79 : x
  2. Step 2: Convert to fraction form
    19,589.49/27,020.10 = 12,512.79/x
  3. Step 3: Cross multiply
    19,589.49x = 27,020.10 × 12,512.79
  4. Step 4: Simplify right side
    19,589.49x = 338,096,837.08
  5. Step 5: Solve for x
    x = 338,096,837.08/19,589.49
  6. Step 6: Final answer
    x = 17,259.09

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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.