Home / 20,211.98-27,893.70-11,259.18

Finding the Fourth Proportional to 20,211.98, 27,893.70 and 11,259.18

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Solution

The fourth proportional to 20,211.98, 27,893.70 and 11,259.18 is: 15,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.98 : 27,893.70 = 11,259.18 : x
  2. Step 2: Convert to fraction form
    20,211.98/27,893.70 = 11,259.18/x
  3. Step 3: Cross multiply
    20,211.98x = 27,893.70 × 11,259.18
  4. Step 4: Simplify right side
    20,211.98x = 314,060,189.17
  5. Step 5: Solve for x
    x = 314,060,189.17/20,211.98
  6. Step 6: Final answer
    x = 15,538.32

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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.