Home / 43,831.60-65,731.20-14,250.40

Finding the Fourth Proportional to 43,831.60, 65,731.20 and 14,250.40

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Solution

The fourth proportional to 43,831.60, 65,731.20 and 14,250.40 is: 21,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,831.60 : 65,731.20 = 14,250.40 : x
  2. Step 2: Convert to fraction form
    43,831.60/65,731.20 = 14,250.40/x
  3. Step 3: Cross multiply
    43,831.60x = 65,731.20 × 14,250.40
  4. Step 4: Simplify right side
    43,831.60x = 936,695,892.48
  5. Step 5: Solve for x
    x = 936,695,892.48/43,831.60
  6. Step 6: Final answer
    x = 21,370.33

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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.