Home / 39,538.42-54,561.90-21,633.04

Finding the Fourth Proportional to 39,538.42, 54,561.90 and 21,633.04

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Solution

The fourth proportional to 39,538.42, 54,561.90 and 21,633.04 is: 29,852.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,538.42 : 54,561.90 = 21,633.04 : x
  2. Step 2: Convert to fraction form
    39,538.42/54,561.90 = 21,633.04/x
  3. Step 3: Cross multiply
    39,538.42x = 54,561.90 × 21,633.04
  4. Step 4: Simplify right side
    39,538.42x = 1,180,339,765.18
  5. Step 5: Solve for x
    x = 1,180,339,765.18/39,538.42
  6. Step 6: Final answer
    x = 29,852.98

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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.