Home / 39,678.91-54,741.96-25,339.28

Finding the Fourth Proportional to 39,678.91, 54,741.96 and 25,339.28

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Solution

The fourth proportional to 39,678.91, 54,741.96 and 25,339.28 is: 34,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.91 : 54,741.96 = 25,339.28 : x
  2. Step 2: Convert to fraction form
    39,678.91/54,741.96 = 25,339.28/x
  3. Step 3: Cross multiply
    39,678.91x = 54,741.96 × 25,339.28
  4. Step 4: Simplify right side
    39,678.91x = 1,387,121,578.48
  5. Step 5: Solve for x
    x = 1,387,121,578.48/39,678.91
  6. Step 6: Final answer
    x = 34,958.66

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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.