Home / 13,743.66-20,570.36-10,438.55

Finding the Fourth Proportional to 13,743.66, 20,570.36 and 10,438.55

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Solution

The fourth proportional to 13,743.66, 20,570.36 and 10,438.55 is: 15,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.66 : 20,570.36 = 10,438.55 : x
  2. Step 2: Convert to fraction form
    13,743.66/20,570.36 = 10,438.55/x
  3. Step 3: Cross multiply
    13,743.66x = 20,570.36 × 10,438.55
  4. Step 4: Simplify right side
    13,743.66x = 214,724,628.53
  5. Step 5: Solve for x
    x = 214,724,628.53/13,743.66
  6. Step 6: Final answer
    x = 15,623.54

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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.