Home / 21,845.64-30,084.60-19,673.70

Finding the Fourth Proportional to 21,845.64, 30,084.60 and 19,673.70

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Solution

The fourth proportional to 21,845.64, 30,084.60 and 19,673.70 is: 27,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.64 : 30,084.60 = 19,673.70 : x
  2. Step 2: Convert to fraction form
    21,845.64/30,084.60 = 19,673.70/x
  3. Step 3: Cross multiply
    21,845.64x = 30,084.60 × 19,673.70
  4. Step 4: Simplify right side
    21,845.64x = 591,875,395.02
  5. Step 5: Solve for x
    x = 591,875,395.02/21,845.64
  6. Step 6: Final answer
    x = 27,093.53

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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.