Home / 25,508.88-38,278.44-13,821.84

Finding the Fourth Proportional to 25,508.88, 38,278.44 and 13,821.84

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Solution

The fourth proportional to 25,508.88, 38,278.44 and 13,821.84 is: 20,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,508.88 : 38,278.44 = 13,821.84 : x
  2. Step 2: Convert to fraction form
    25,508.88/38,278.44 = 13,821.84/x
  3. Step 3: Cross multiply
    25,508.88x = 38,278.44 × 13,821.84
  4. Step 4: Simplify right side
    25,508.88x = 529,078,473.13
  5. Step 5: Solve for x
    x = 529,078,473.13/25,508.88
  6. Step 6: Final answer
    x = 20,740.95

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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.