Home / 18,701.42-28,025.40-13,732.08

Finding the Fourth Proportional to 18,701.42, 28,025.40 and 13,732.08

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Solution

The fourth proportional to 18,701.42, 28,025.40 and 13,732.08 is: 20,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.42 : 28,025.40 = 13,732.08 : x
  2. Step 2: Convert to fraction form
    18,701.42/28,025.40 = 13,732.08/x
  3. Step 3: Cross multiply
    18,701.42x = 28,025.40 × 13,732.08
  4. Step 4: Simplify right side
    18,701.42x = 384,847,034.83
  5. Step 5: Solve for x
    x = 384,847,034.83/18,701.42
  6. Step 6: Final answer
    x = 20,578.49

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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.