Home / 13,831.65-20,749.35-4,468.56

Finding the Fourth Proportional to 13,831.65, 20,749.35 and 4,468.56

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Solution

The fourth proportional to 13,831.65, 20,749.35 and 4,468.56 is: 6,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.65 : 20,749.35 = 4,468.56 : x
  2. Step 2: Convert to fraction form
    13,831.65/20,749.35 = 4,468.56/x
  3. Step 3: Cross multiply
    13,831.65x = 20,749.35 × 4,468.56
  4. Step 4: Simplify right side
    13,831.65x = 92,719,715.44
  5. Step 5: Solve for x
    x = 92,719,715.44/13,831.65
  6. Step 6: Final answer
    x = 6,703.45

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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.