Home / 19,740.57-29,571.78-10,366.53

Finding the Fourth Proportional to 19,740.57, 29,571.78 and 10,366.53

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Solution

The fourth proportional to 19,740.57, 29,571.78 and 10,366.53 is: 15,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.57 : 29,571.78 = 10,366.53 : x
  2. Step 2: Convert to fraction form
    19,740.57/29,571.78 = 10,366.53/x
  3. Step 3: Cross multiply
    19,740.57x = 29,571.78 × 10,366.53
  4. Step 4: Simplify right side
    19,740.57x = 306,556,744.52
  5. Step 5: Solve for x
    x = 306,556,744.52/19,740.57
  6. Step 6: Final answer
    x = 15,529.28

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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.