Home / 20,258.93-27,958.73-11,308.18

Finding the Fourth Proportional to 20,258.93, 27,958.73 and 11,308.18

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Solution

The fourth proportional to 20,258.93, 27,958.73 and 11,308.18 is: 15,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.93 : 27,958.73 = 11,308.18 : x
  2. Step 2: Convert to fraction form
    20,258.93/27,958.73 = 11,308.18/x
  3. Step 3: Cross multiply
    20,258.93x = 27,958.73 × 11,308.18
  4. Step 4: Simplify right side
    20,258.93x = 316,162,329.82
  5. Step 5: Solve for x
    x = 316,162,329.82/20,258.93
  6. Step 6: Final answer
    x = 15,606.07

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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.