Home / 20,211.52-27,892.76-11,259.04

Finding the Fourth Proportional to 20,211.52, 27,892.76 and 11,259.04

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Solution

The fourth proportional to 20,211.52, 27,892.76 and 11,259.04 is: 15,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.52 : 27,892.76 = 11,259.04 : x
  2. Step 2: Convert to fraction form
    20,211.52/27,892.76 = 11,259.04/x
  3. Step 3: Cross multiply
    20,211.52x = 27,892.76 × 11,259.04
  4. Step 4: Simplify right side
    20,211.52x = 314,045,700.55
  5. Step 5: Solve for x
    x = 314,045,700.55/20,211.52
  6. Step 6: Final answer
    x = 15,537.96

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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.