Home / 39,519.31-54,535.54-21,613.94

Finding the Fourth Proportional to 39,519.31, 54,535.54 and 21,613.94

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Solution

The fourth proportional to 39,519.31, 54,535.54 and 21,613.94 is: 29,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.31 : 54,535.54 = 21,613.94 : x
  2. Step 2: Convert to fraction form
    39,519.31/54,535.54 = 21,613.94/x
  3. Step 3: Cross multiply
    39,519.31x = 54,535.54 × 21,613.94
  4. Step 4: Simplify right side
    39,519.31x = 1,178,727,889.43
  5. Step 5: Solve for x
    x = 1,178,727,889.43/39,519.31
  6. Step 6: Final answer
    x = 29,826.63

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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.