Home / 19,751.68-27,257.61-13,380.22

Finding the Fourth Proportional to 19,751.68, 27,257.61 and 13,380.22

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Solution

The fourth proportional to 19,751.68, 27,257.61 and 13,380.22 is: 18,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.68 : 27,257.61 = 13,380.22 : x
  2. Step 2: Convert to fraction form
    19,751.68/27,257.61 = 13,380.22/x
  3. Step 3: Cross multiply
    19,751.68x = 27,257.61 × 13,380.22
  4. Step 4: Simplify right side
    19,751.68x = 364,712,818.47
  5. Step 5: Solve for x
    x = 364,712,818.47/19,751.68
  6. Step 6: Final answer
    x = 18,464.90

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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.