Home / 20,211.48-27,892.98-11,258.64

Finding the Fourth Proportional to 20,211.48, 27,892.98 and 11,258.64

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Solution

The fourth proportional to 20,211.48, 27,892.98 and 11,258.64 is: 15,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.48 : 27,892.98 = 11,258.64 : x
  2. Step 2: Convert to fraction form
    20,211.48/27,892.98 = 11,258.64/x
  3. Step 3: Cross multiply
    20,211.48x = 27,892.98 × 11,258.64
  4. Step 4: Simplify right side
    20,211.48x = 314,037,020.35
  5. Step 5: Solve for x
    x = 314,037,020.35/20,211.48
  6. Step 6: Final answer
    x = 15,537.56

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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.