Home / 39,649.45-54,716.98-21,743.38

Finding the Fourth Proportional to 39,649.45, 54,716.98 and 21,743.38

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Solution

The fourth proportional to 39,649.45, 54,716.98 and 21,743.38 is: 30,006.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.45 : 54,716.98 = 21,743.38 : x
  2. Step 2: Convert to fraction form
    39,649.45/54,716.98 = 21,743.38/x
  3. Step 3: Cross multiply
    39,649.45x = 54,716.98 × 21,743.38
  4. Step 4: Simplify right side
    39,649.45x = 1,189,732,088.59
  5. Step 5: Solve for x
    x = 1,189,732,088.59/39,649.45
  6. Step 6: Final answer
    x = 30,006.27

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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.