Home / 25,212-34,801.20-15,276

Finding the Fourth Proportional to 25,212, 34,801.20 and 15,276

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Solution

The fourth proportional to 25,212, 34,801.20 and 15,276 is: 21,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,212 : 34,801.20 = 15,276 : x
  2. Step 2: Convert to fraction form
    25,212/34,801.20 = 15,276/x
  3. Step 3: Cross multiply
    25,212x = 34,801.20 × 15,276
  4. Step 4: Simplify right side
    25,212x = 531,623,131.20
  5. Step 5: Solve for x
    x = 531,623,131.20/25,212
  6. Step 6: Final answer
    x = 21,086.11

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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.