Home / 20,346.24-28,076.45-11,270.99

Finding the Fourth Proportional to 20,346.24, 28,076.45 and 11,270.99

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Solution

The fourth proportional to 20,346.24, 28,076.45 and 11,270.99 is: 15,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.24 : 28,076.45 = 11,270.99 : x
  2. Step 2: Convert to fraction form
    20,346.24/28,076.45 = 11,270.99/x
  3. Step 3: Cross multiply
    20,346.24x = 28,076.45 × 11,270.99
  4. Step 4: Simplify right side
    20,346.24x = 316,449,415.36
  5. Step 5: Solve for x
    x = 316,449,415.36/20,346.24
  6. Step 6: Final answer
    x = 15,553.21

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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.