Home / 39,308.73-54,246.39-21,403.86

Finding the Fourth Proportional to 39,308.73, 54,246.39 and 21,403.86

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Solution

The fourth proportional to 39,308.73, 54,246.39 and 21,403.86 is: 29,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,308.73 : 54,246.39 = 21,403.86 : x
  2. Step 2: Convert to fraction form
    39,308.73/54,246.39 = 21,403.86/x
  3. Step 3: Cross multiply
    39,308.73x = 54,246.39 × 21,403.86
  4. Step 4: Simplify right side
    39,308.73x = 1,161,082,137.07
  5. Step 5: Solve for x
    x = 1,161,082,137.07/39,308.73
  6. Step 6: Final answer
    x = 29,537.51

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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.