Home / 38,385.36-57,529.53-20,571.75

Finding the Fourth Proportional to 38,385.36, 57,529.53 and 20,571.75

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Solution

The fourth proportional to 38,385.36, 57,529.53 and 20,571.75 is: 30,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.36 : 57,529.53 = 20,571.75 : x
  2. Step 2: Convert to fraction form
    38,385.36/57,529.53 = 20,571.75/x
  3. Step 3: Cross multiply
    38,385.36x = 57,529.53 × 20,571.75
  4. Step 4: Simplify right side
    38,385.36x = 1,183,483,108.78
  5. Step 5: Solve for x
    x = 1,183,483,108.78/38,385.36
  6. Step 6: Final answer
    x = 30,831.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.