Home / 39,357.74-54,313.05-21,452.90

Finding the Fourth Proportional to 39,357.74, 54,313.05 and 21,452.90

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Solution

The fourth proportional to 39,357.74, 54,313.05 and 21,452.90 is: 29,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,357.74 : 54,313.05 = 21,452.90 : x
  2. Step 2: Convert to fraction form
    39,357.74/54,313.05 = 21,452.90/x
  3. Step 3: Cross multiply
    39,357.74x = 54,313.05 × 21,452.90
  4. Step 4: Simplify right side
    39,357.74x = 1,165,172,158.78
  5. Step 5: Solve for x
    x = 1,165,172,158.78/39,357.74
  6. Step 6: Final answer
    x = 29,604.65

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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.