Home / 36,324.79-50,129.70-20,409.20

Finding the Fourth Proportional to 36,324.79, 50,129.70 and 20,409.20

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Solution

The fourth proportional to 36,324.79, 50,129.70 and 20,409.20 is: 28,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,324.79 : 50,129.70 = 20,409.20 : x
  2. Step 2: Convert to fraction form
    36,324.79/50,129.70 = 20,409.20/x
  3. Step 3: Cross multiply
    36,324.79x = 50,129.70 × 20,409.20
  4. Step 4: Simplify right side
    36,324.79x = 1,023,107,073.24
  5. Step 5: Solve for x
    x = 1,023,107,073.24/36,324.79
  6. Step 6: Final answer
    x = 28,165.53

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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.