Home / 18,944.40-26,167.86-15,372.60

Finding the Fourth Proportional to 18,944.40, 26,167.86 and 15,372.60

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Solution

The fourth proportional to 18,944.40, 26,167.86 and 15,372.60 is: 21,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.40 : 26,167.86 = 15,372.60 : x
  2. Step 2: Convert to fraction form
    18,944.40/26,167.86 = 15,372.60/x
  3. Step 3: Cross multiply
    18,944.40x = 26,167.86 × 15,372.60
  4. Step 4: Simplify right side
    18,944.40x = 402,268,044.64
  5. Step 5: Solve for x
    x = 402,268,044.64/18,944.40
  6. Step 6: Final answer
    x = 21,234.14

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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.