Home / 39,357.64-54,313.50-21,452.68

Finding the Fourth Proportional to 39,357.64, 54,313.50 and 21,452.68

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Solution

The fourth proportional to 39,357.64, 54,313.50 and 21,452.68 is: 29,604.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,357.64 : 54,313.50 = 21,452.68 : x
  2. Step 2: Convert to fraction form
    39,357.64/54,313.50 = 21,452.68/x
  3. Step 3: Cross multiply
    39,357.64x = 54,313.50 × 21,452.68
  4. Step 4: Simplify right side
    39,357.64x = 1,165,170,135.18
  5. Step 5: Solve for x
    x = 1,165,170,135.18/39,357.64
  6. Step 6: Final answer
    x = 29,604.67

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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.