Home / 39,266.20-54,187.86-21,361.69

Finding the Fourth Proportional to 39,266.20, 54,187.86 and 21,361.69

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Solution

The fourth proportional to 39,266.20, 54,187.86 and 21,361.69 is: 29,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,266.20 : 54,187.86 = 21,361.69 : x
  2. Step 2: Convert to fraction form
    39,266.20/54,187.86 = 21,361.69/x
  3. Step 3: Cross multiply
    39,266.20x = 54,187.86 × 21,361.69
  4. Step 4: Simplify right side
    39,266.20x = 1,157,544,267.08
  5. Step 5: Solve for x
    x = 1,157,544,267.08/39,266.20
  6. Step 6: Final answer
    x = 29,479.41

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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.