Home / 45,215.72-67,843.74-17,515.88

Finding the Fourth Proportional to 45,215.72, 67,843.74 and 17,515.88

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Solution

The fourth proportional to 45,215.72, 67,843.74 and 17,515.88 is: 26,281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,215.72 : 67,843.74 = 17,515.88 : x
  2. Step 2: Convert to fraction form
    45,215.72/67,843.74 = 17,515.88/x
  3. Step 3: Cross multiply
    45,215.72x = 67,843.74 × 17,515.88
  4. Step 4: Simplify right side
    45,215.72x = 1,188,342,808.59
  5. Step 5: Solve for x
    x = 1,188,342,808.59/45,215.72
  6. Step 6: Final answer
    x = 26,281.63

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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.