Home / 34,383.60-51,628.20-18,831.60

Finding the Fourth Proportional to 34,383.60, 51,628.20 and 18,831.60

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Solution

The fourth proportional to 34,383.60, 51,628.20 and 18,831.60 is: 28,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,383.60 : 51,628.20 = 18,831.60 : x
  2. Step 2: Convert to fraction form
    34,383.60/51,628.20 = 18,831.60/x
  3. Step 3: Cross multiply
    34,383.60x = 51,628.20 × 18,831.60
  4. Step 4: Simplify right side
    34,383.60x = 972,241,611.12
  5. Step 5: Solve for x
    x = 972,241,611.12/34,383.60
  6. Step 6: Final answer
    x = 28,276.32

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1.5x scale

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.