Home / 19,589.62-27,027-12,520.12

Finding the Fourth Proportional to 19,589.62, 27,027 and 12,520.12

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Solution

The fourth proportional to 19,589.62, 27,027 and 12,520.12 is: 17,273.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.62 : 27,027 = 12,520.12 : x
  2. Step 2: Convert to fraction form
    19,589.62/27,027 = 12,520.12/x
  3. Step 3: Cross multiply
    19,589.62x = 27,027 × 12,520.12
  4. Step 4: Simplify right side
    19,589.62x = 338,381,283.24
  5. Step 5: Solve for x
    x = 338,381,283.24/19,589.62
  6. Step 6: Final answer
    x = 17,273.50

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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.