Home / 39,559.23-54,589.62-21,650.79

Finding the Fourth Proportional to 39,559.23, 54,589.62 and 21,650.79

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Solution

The fourth proportional to 39,559.23, 54,589.62 and 21,650.79 is: 29,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,559.23 : 54,589.62 = 21,650.79 : x
  2. Step 2: Convert to fraction form
    39,559.23/54,589.62 = 21,650.79/x
  3. Step 3: Cross multiply
    39,559.23x = 54,589.62 × 21,650.79
  4. Step 4: Simplify right side
    39,559.23x = 1,181,908,398.80
  5. Step 5: Solve for x
    x = 1,181,908,398.80/39,559.23
  6. Step 6: Final answer
    x = 29,876.93

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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.