Home / 39,596.20-54,642.82-21,690.81

Finding the Fourth Proportional to 39,596.20, 54,642.82 and 21,690.81

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Solution

The fourth proportional to 39,596.20, 54,642.82 and 21,690.81 is: 29,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,596.20 : 54,642.82 = 21,690.81 : x
  2. Step 2: Convert to fraction form
    39,596.20/54,642.82 = 21,690.81/x
  3. Step 3: Cross multiply
    39,596.20x = 54,642.82 × 21,690.81
  4. Step 4: Simplify right side
    39,596.20x = 1,185,246,918.03
  5. Step 5: Solve for x
    x = 1,185,246,918.03/39,596.20
  6. Step 6: Final answer
    x = 29,933.35

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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.