Home / 39,619.20-54,674.16-21,713.84

Finding the Fourth Proportional to 39,619.20, 54,674.16 and 21,713.84

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Solution

The fourth proportional to 39,619.20, 54,674.16 and 21,713.84 is: 29,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.20 : 54,674.16 = 21,713.84 : x
  2. Step 2: Convert to fraction form
    39,619.20/54,674.16 = 21,713.84/x
  3. Step 3: Cross multiply
    39,619.20x = 54,674.16 × 21,713.84
  4. Step 4: Simplify right side
    39,619.20x = 1,187,185,962.37
  5. Step 5: Solve for x
    x = 1,187,185,962.37/39,619.20
  6. Step 6: Final answer
    x = 29,964.92

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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.