Home / 30,256.50-41,722.38-18,315.48

Finding the Fourth Proportional to 30,256.50, 41,722.38 and 18,315.48

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Solution

The fourth proportional to 30,256.50, 41,722.38 and 18,315.48 is: 25,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,256.50 : 41,722.38 = 18,315.48 : x
  2. Step 2: Convert to fraction form
    30,256.50/41,722.38 = 18,315.48/x
  3. Step 3: Cross multiply
    30,256.50x = 41,722.38 × 18,315.48
  4. Step 4: Simplify right side
    30,256.50x = 764,165,416.44
  5. Step 5: Solve for x
    x = 764,165,416.44/30,256.50
  6. Step 6: Final answer
    x = 25,256.24

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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.