Home / 18,199.52-25,052.19-15,689.94

Finding the Fourth Proportional to 18,199.52, 25,052.19 and 15,689.94

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Solution

The fourth proportional to 18,199.52, 25,052.19 and 15,689.94 is: 21,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.52 : 25,052.19 = 15,689.94 : x
  2. Step 2: Convert to fraction form
    18,199.52/25,052.19 = 15,689.94/x
  3. Step 3: Cross multiply
    18,199.52x = 25,052.19 × 15,689.94
  4. Step 4: Simplify right side
    18,199.52x = 393,067,205.19
  5. Step 5: Solve for x
    x = 393,067,205.19/18,199.52
  6. Step 6: Final answer
    x = 21,597.67

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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.