Home / 20,260.40-27,960.54-11,308.28

Finding the Fourth Proportional to 20,260.40, 27,960.54 and 11,308.28

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Solution

The fourth proportional to 20,260.40, 27,960.54 and 11,308.28 is: 15,606.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.40 : 27,960.54 = 11,308.28 : x
  2. Step 2: Convert to fraction form
    20,260.40/27,960.54 = 11,308.28/x
  3. Step 3: Cross multiply
    20,260.40x = 27,960.54 × 11,308.28
  4. Step 4: Simplify right side
    20,260.40x = 316,185,615.27
  5. Step 5: Solve for x
    x = 316,185,615.27/20,260.40
  6. Step 6: Final answer
    x = 15,606.09

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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.