Home / 38,320.57-57,480.75-12,027.28

Finding the Fourth Proportional to 38,320.57, 57,480.75 and 12,027.28

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Solution

The fourth proportional to 38,320.57, 57,480.75 and 12,027.28 is: 18,040.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,320.57 : 57,480.75 = 12,027.28 : x
  2. Step 2: Convert to fraction form
    38,320.57/57,480.75 = 12,027.28/x
  3. Step 3: Cross multiply
    38,320.57x = 57,480.75 × 12,027.28
  4. Step 4: Simplify right side
    38,320.57x = 691,337,074.86
  5. Step 5: Solve for x
    x = 691,337,074.86/38,320.57
  6. Step 6: Final answer
    x = 18,040.89

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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.