Home / 20,269.71-27,970.06-11,770.17

Finding the Fourth Proportional to 20,269.71, 27,970.06 and 11,770.17

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Solution

The fourth proportional to 20,269.71, 27,970.06 and 11,770.17 is: 16,241.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.71 : 27,970.06 = 11,770.17 : x
  2. Step 2: Convert to fraction form
    20,269.71/27,970.06 = 11,770.17/x
  3. Step 3: Cross multiply
    20,269.71x = 27,970.06 × 11,770.17
  4. Step 4: Simplify right side
    20,269.71x = 329,212,361.11
  5. Step 5: Solve for x
    x = 329,212,361.11/20,269.71
  6. Step 6: Final answer
    x = 16,241.59

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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.