Home / 25,835.54-38,720.79-13,988.84

Finding the Fourth Proportional to 25,835.54, 38,720.79 and 13,988.84

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Solution

The fourth proportional to 25,835.54, 38,720.79 and 13,988.84 is: 20,965.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,835.54 : 38,720.79 = 13,988.84 : x
  2. Step 2: Convert to fraction form
    25,835.54/38,720.79 = 13,988.84/x
  3. Step 3: Cross multiply
    25,835.54x = 38,720.79 × 13,988.84
  4. Step 4: Simplify right side
    25,835.54x = 541,658,935.98
  5. Step 5: Solve for x
    x = 541,658,935.98/25,835.54
  6. Step 6: Final answer
    x = 20,965.65

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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.