Home / 39,272.85-54,196.65-21,367.86

Finding the Fourth Proportional to 39,272.85, 54,196.65 and 21,367.86

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Solution

The fourth proportional to 39,272.85, 54,196.65 and 21,367.86 is: 29,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,272.85 : 54,196.65 = 21,367.86 : x
  2. Step 2: Convert to fraction form
    39,272.85/54,196.65 = 21,367.86/x
  3. Step 3: Cross multiply
    39,272.85x = 54,196.65 × 21,367.86
  4. Step 4: Simplify right side
    39,272.85x = 1,158,066,429.67
  5. Step 5: Solve for x
    x = 1,158,066,429.67/39,272.85
  6. Step 6: Final answer
    x = 29,487.71

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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.