Home / 15,419.15-23,128.72-8,831.27

Finding the Fourth Proportional to 15,419.15, 23,128.72 and 8,831.27

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Solution

The fourth proportional to 15,419.15, 23,128.72 and 8,831.27 is: 13,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.15 : 23,128.72 = 8,831.27 : x
  2. Step 2: Convert to fraction form
    15,419.15/23,128.72 = 8,831.27/x
  3. Step 3: Cross multiply
    15,419.15x = 23,128.72 × 8,831.27
  4. Step 4: Simplify right side
    15,419.15x = 204,255,971.07
  5. Step 5: Solve for x
    x = 204,255,971.07/15,419.15
  6. Step 6: Final answer
    x = 13,246.90

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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.