Home / 20,738.87-31,108.27-16,559.29

Finding the Fourth Proportional to 20,738.87, 31,108.27 and 16,559.29

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Solution

The fourth proportional to 20,738.87, 31,108.27 and 16,559.29 is: 24,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.87 : 31,108.27 = 16,559.29 : x
  2. Step 2: Convert to fraction form
    20,738.87/31,108.27 = 16,559.29/x
  3. Step 3: Cross multiply
    20,738.87x = 31,108.27 × 16,559.29
  4. Step 4: Simplify right side
    20,738.87x = 515,130,861.82
  5. Step 5: Solve for x
    x = 515,130,861.82/20,738.87
  6. Step 6: Final answer
    x = 24,838.91

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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.