Home / 20,260.67-27,959.45-11,308.05

Finding the Fourth Proportional to 20,260.67, 27,959.45 and 11,308.05

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Solution

The fourth proportional to 20,260.67, 27,959.45 and 11,308.05 is: 15,604.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.67 : 27,959.45 = 11,308.05 : x
  2. Step 2: Convert to fraction form
    20,260.67/27,959.45 = 11,308.05/x
  3. Step 3: Cross multiply
    20,260.67x = 27,959.45 × 11,308.05
  4. Step 4: Simplify right side
    20,260.67x = 316,166,886.84
  5. Step 5: Solve for x
    x = 316,166,886.84/20,260.67
  6. Step 6: Final answer
    x = 15,604.96

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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.