Home / 33,172.10-45,777.03-18,831.80

Finding the Fourth Proportional to 33,172.10, 45,777.03 and 18,831.80

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Solution

The fourth proportional to 33,172.10, 45,777.03 and 18,831.80 is: 25,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,172.10 : 45,777.03 = 18,831.80 : x
  2. Step 2: Convert to fraction form
    33,172.10/45,777.03 = 18,831.80/x
  3. Step 3: Cross multiply
    33,172.10x = 45,777.03 × 18,831.80
  4. Step 4: Simplify right side
    33,172.10x = 862,063,644.67
  5. Step 5: Solve for x
    x = 862,063,644.67/33,172.10
  6. Step 6: Final answer
    x = 25,987.62

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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.