Home / 34,515.42-51,756.72-19,720.36

Finding the Fourth Proportional to 34,515.42, 51,756.72 and 19,720.36

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Solution

The fourth proportional to 34,515.42, 51,756.72 and 19,720.36 is: 29,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,515.42 : 51,756.72 = 19,720.36 : x
  2. Step 2: Convert to fraction form
    34,515.42/51,756.72 = 19,720.36/x
  3. Step 3: Cross multiply
    34,515.42x = 51,756.72 × 19,720.36
  4. Step 4: Simplify right side
    34,515.42x = 1,020,661,252.49
  5. Step 5: Solve for x
    x = 1,020,661,252.49/34,515.42
  6. Step 6: Final answer
    x = 29,571.17

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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.