Home / 20,264.54-27,962.26-11,311.20

Finding the Fourth Proportional to 20,264.54, 27,962.26 and 11,311.20

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Solution

The fourth proportional to 20,264.54, 27,962.26 and 11,311.20 is: 15,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.54 : 27,962.26 = 11,311.20 : x
  2. Step 2: Convert to fraction form
    20,264.54/27,962.26 = 11,311.20/x
  3. Step 3: Cross multiply
    20,264.54x = 27,962.26 × 11,311.20
  4. Step 4: Simplify right side
    20,264.54x = 316,286,715.31
  5. Step 5: Solve for x
    x = 316,286,715.31/20,264.54
  6. Step 6: Final answer
    x = 15,607.89

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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.