Home / 31,505.48-43,468.24-18,748.44

Finding the Fourth Proportional to 31,505.48, 43,468.24 and 18,748.44

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Solution

The fourth proportional to 31,505.48, 43,468.24 and 18,748.44 is: 25,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.48 : 43,468.24 = 18,748.44 : x
  2. Step 2: Convert to fraction form
    31,505.48/43,468.24 = 18,748.44/x
  3. Step 3: Cross multiply
    31,505.48x = 43,468.24 × 18,748.44
  4. Step 4: Simplify right side
    31,505.48x = 814,961,689.55
  5. Step 5: Solve for x
    x = 814,961,689.55/31,505.48
  6. Step 6: Final answer
    x = 25,867.30

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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.