Home / 19,838.21-29,756.87-5,047.15

Finding the Fourth Proportional to 19,838.21, 29,756.87 and 5,047.15

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Solution

The fourth proportional to 19,838.21, 29,756.87 and 5,047.15 is: 7,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.21 : 29,756.87 = 5,047.15 : x
  2. Step 2: Convert to fraction form
    19,838.21/29,756.87 = 5,047.15/x
  3. Step 3: Cross multiply
    19,838.21x = 29,756.87 × 5,047.15
  4. Step 4: Simplify right side
    19,838.21x = 150,187,286.79
  5. Step 5: Solve for x
    x = 150,187,286.79/19,838.21
  6. Step 6: Final answer
    x = 7,570.61

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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.