Home / 39,617.69-54,673.68-21,713.80

Finding the Fourth Proportional to 39,617.69, 54,673.68 and 21,713.80

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Solution

The fourth proportional to 39,617.69, 54,673.68 and 21,713.80 is: 29,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.69 : 54,673.68 = 21,713.80 : x
  2. Step 2: Convert to fraction form
    39,617.69/54,673.68 = 21,713.80/x
  3. Step 3: Cross multiply
    39,617.69x = 54,673.68 × 21,713.80
  4. Step 4: Simplify right side
    39,617.69x = 1,187,173,079.42
  5. Step 5: Solve for x
    x = 1,187,173,079.42/39,617.69
  6. Step 6: Final answer
    x = 29,965.73

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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.