Home / 17,390.88-24,011.52-13,405.44

Finding the Fourth Proportional to 17,390.88, 24,011.52 and 13,405.44

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Solution

The fourth proportional to 17,390.88, 24,011.52 and 13,405.44 is: 18,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.88 : 24,011.52 = 13,405.44 : x
  2. Step 2: Convert to fraction form
    17,390.88/24,011.52 = 13,405.44/x
  3. Step 3: Cross multiply
    17,390.88x = 24,011.52 × 13,405.44
  4. Step 4: Simplify right side
    17,390.88x = 321,884,990.67
  5. Step 5: Solve for x
    x = 321,884,990.67/17,390.88
  6. Step 6: Final answer
    x = 18,508.84

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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.