Home / 18,566.86-25,578.95-15,190

Finding the Fourth Proportional to 18,566.86, 25,578.95 and 15,190

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Solution

The fourth proportional to 18,566.86, 25,578.95 and 15,190 is: 20,926.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.86 : 25,578.95 = 15,190 : x
  2. Step 2: Convert to fraction form
    18,566.86/25,578.95 = 15,190/x
  3. Step 3: Cross multiply
    18,566.86x = 25,578.95 × 15,190
  4. Step 4: Simplify right side
    18,566.86x = 388,544,250.50
  5. Step 5: Solve for x
    x = 388,544,250.50/18,566.86
  6. Step 6: Final answer
    x = 20,926.76

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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.