Home / 15,831.88-23,748.10-13,047.64

Finding the Fourth Proportional to 15,831.88, 23,748.10 and 13,047.64

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Solution

The fourth proportional to 15,831.88, 23,748.10 and 13,047.64 is: 19,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.88 : 23,748.10 = 13,047.64 : x
  2. Step 2: Convert to fraction form
    15,831.88/23,748.10 = 13,047.64/x
  3. Step 3: Cross multiply
    15,831.88x = 23,748.10 × 13,047.64
  4. Step 4: Simplify right side
    15,831.88x = 309,856,659.48
  5. Step 5: Solve for x
    x = 309,856,659.48/15,831.88
  6. Step 6: Final answer
    x = 19,571.69

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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.