Home / 31,466.88-43,422.98-18,028.80

Finding the Fourth Proportional to 31,466.88, 43,422.98 and 18,028.80

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Solution

The fourth proportional to 31,466.88, 43,422.98 and 18,028.80 is: 24,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,466.88 : 43,422.98 = 18,028.80 : x
  2. Step 2: Convert to fraction form
    31,466.88/43,422.98 = 18,028.80/x
  3. Step 3: Cross multiply
    31,466.88x = 43,422.98 × 18,028.80
  4. Step 4: Simplify right side
    31,466.88x = 782,864,221.82
  5. Step 5: Solve for x
    x = 782,864,221.82/31,466.88
  6. Step 6: Final answer
    x = 24,878.99

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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.