Home / 25,539.88-38,304.42-12,205.30

Finding the Fourth Proportional to 25,539.88, 38,304.42 and 12,205.30

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Solution

The fourth proportional to 25,539.88, 38,304.42 and 12,205.30 is: 18,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,539.88 : 38,304.42 = 12,205.30 : x
  2. Step 2: Convert to fraction form
    25,539.88/38,304.42 = 12,205.30/x
  3. Step 3: Cross multiply
    25,539.88x = 38,304.42 × 12,205.30
  4. Step 4: Simplify right side
    25,539.88x = 467,516,937.43
  5. Step 5: Solve for x
    x = 467,516,937.43/25,539.88
  6. Step 6: Final answer
    x = 18,305.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.