Home / 39,560.23-54,591-21,651.79

Finding the Fourth Proportional to 39,560.23, 54,591 and 21,651.79

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Solution

The fourth proportional to 39,560.23, 54,591 and 21,651.79 is: 29,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,560.23 : 54,591 = 21,651.79 : x
  2. Step 2: Convert to fraction form
    39,560.23/54,591 = 21,651.79/x
  3. Step 3: Cross multiply
    39,560.23x = 54,591 × 21,651.79
  4. Step 4: Simplify right side
    39,560.23x = 1,181,992,867.89
  5. Step 5: Solve for x
    x = 1,181,992,867.89/39,560.23
  6. Step 6: Final answer
    x = 29,878.31

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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.