Home / 33,171.60-45,776.35-18,831.30

Finding the Fourth Proportional to 33,171.60, 45,776.35 and 18,831.30

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Solution

The fourth proportional to 33,171.60, 45,776.35 and 18,831.30 is: 25,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,171.60 : 45,776.35 = 18,831.30 : x
  2. Step 2: Convert to fraction form
    33,171.60/45,776.35 = 18,831.30/x
  3. Step 3: Cross multiply
    33,171.60x = 45,776.35 × 18,831.30
  4. Step 4: Simplify right side
    33,171.60x = 862,028,085.60
  5. Step 5: Solve for x
    x = 862,028,085.60/33,171.60
  6. Step 6: Final answer
    x = 25,986.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.