Home / 17,290.24-25,886.40-13,439.68

Finding the Fourth Proportional to 17,290.24, 25,886.40 and 13,439.68

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Solution

The fourth proportional to 17,290.24, 25,886.40 and 13,439.68 is: 20,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,290.24 : 25,886.40 = 13,439.68 : x
  2. Step 2: Convert to fraction form
    17,290.24/25,886.40 = 13,439.68/x
  3. Step 3: Cross multiply
    17,290.24x = 25,886.40 × 13,439.68
  4. Step 4: Simplify right side
    17,290.24x = 347,904,932.35
  5. Step 5: Solve for x
    x = 347,904,932.35/17,290.24
  6. Step 6: Final answer
    x = 20,121.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.