Home / 19,970.11-27,563.55-12,010.80

Finding the Fourth Proportional to 19,970.11, 27,563.55 and 12,010.80

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Solution

The fourth proportional to 19,970.11, 27,563.55 and 12,010.80 is: 16,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.11 : 27,563.55 = 12,010.80 : x
  2. Step 2: Convert to fraction form
    19,970.11/27,563.55 = 12,010.80/x
  3. Step 3: Cross multiply
    19,970.11x = 27,563.55 × 12,010.80
  4. Step 4: Simplify right side
    19,970.11x = 331,060,286.34
  5. Step 5: Solve for x
    x = 331,060,286.34/19,970.11
  6. Step 6: Final answer
    x = 16,577.79

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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.