Home / 18,941.60-28,371.69-15,367.68

Finding the Fourth Proportional to 18,941.60, 28,371.69 and 15,367.68

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Solution

The fourth proportional to 18,941.60, 28,371.69 and 15,367.68 is: 23,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.60 : 28,371.69 = 15,367.68 : x
  2. Step 2: Convert to fraction form
    18,941.60/28,371.69 = 15,367.68/x
  3. Step 3: Cross multiply
    18,941.60x = 28,371.69 × 15,367.68
  4. Step 4: Simplify right side
    18,941.60x = 436,007,052.98
  5. Step 5: Solve for x
    x = 436,007,052.98/18,941.60
  6. Step 6: Final answer
    x = 23,018.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.