Home / 39,237.96-54,149.48-21,334.20

Finding the Fourth Proportional to 39,237.96, 54,149.48 and 21,334.20

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Solution

The fourth proportional to 39,237.96, 54,149.48 and 21,334.20 is: 29,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237.96 : 54,149.48 = 21,334.20 : x
  2. Step 2: Convert to fraction form
    39,237.96/54,149.48 = 21,334.20/x
  3. Step 3: Cross multiply
    39,237.96x = 54,149.48 × 21,334.20
  4. Step 4: Simplify right side
    39,237.96x = 1,155,235,836.22
  5. Step 5: Solve for x
    x = 1,155,235,836.22/39,237.96
  6. Step 6: Final answer
    x = 29,441.79

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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.