Home / 39,550.36-54,578.28-21,644.98

Finding the Fourth Proportional to 39,550.36, 54,578.28 and 21,644.98

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Solution

The fourth proportional to 39,550.36, 54,578.28 and 21,644.98 is: 29,869.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,550.36 : 54,578.28 = 21,644.98 : x
  2. Step 2: Convert to fraction form
    39,550.36/54,578.28 = 21,644.98/x
  3. Step 3: Cross multiply
    39,550.36x = 54,578.28 × 21,644.98
  4. Step 4: Simplify right side
    39,550.36x = 1,181,345,779.03
  5. Step 5: Solve for x
    x = 1,181,345,779.03/39,550.36
  6. Step 6: Final answer
    x = 29,869.41

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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.