Home / 30,256.91-41,748.56-18,321.36

Finding the Fourth Proportional to 30,256.91, 41,748.56 and 18,321.36

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Solution

The fourth proportional to 30,256.91, 41,748.56 and 18,321.36 is: 25,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,256.91 : 41,748.56 = 18,321.36 : x
  2. Step 2: Convert to fraction form
    30,256.91/41,748.56 = 18,321.36/x
  3. Step 3: Cross multiply
    30,256.91x = 41,748.56 × 18,321.36
  4. Step 4: Simplify right side
    30,256.91x = 764,890,397.24
  5. Step 5: Solve for x
    x = 764,890,397.24/30,256.91
  6. Step 6: Final answer
    x = 25,279.86

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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.