Home / 39,451.86-54,441.52-21,543.37

Finding the Fourth Proportional to 39,451.86, 54,441.52 and 21,543.37

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Solution

The fourth proportional to 39,451.86, 54,441.52 and 21,543.37 is: 29,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,451.86 : 54,441.52 = 21,543.37 : x
  2. Step 2: Convert to fraction form
    39,451.86/54,441.52 = 21,543.37/x
  3. Step 3: Cross multiply
    39,451.86x = 54,441.52 × 21,543.37
  4. Step 4: Simplify right side
    39,451.86x = 1,172,853,618.76
  5. Step 5: Solve for x
    x = 1,172,853,618.76/39,451.86
  6. Step 6: Final answer
    x = 29,728.73

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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.