Home / 33,172.17-45,778.17-18,831.63

Finding the Fourth Proportional to 33,172.17, 45,778.17 and 18,831.63

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Solution

The fourth proportional to 33,172.17, 45,778.17 and 18,831.63 is: 25,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,172.17 : 45,778.17 = 18,831.63 : x
  2. Step 2: Convert to fraction form
    33,172.17/45,778.17 = 18,831.63/x
  3. Step 3: Cross multiply
    33,172.17x = 45,778.17 × 18,831.63
  4. Step 4: Simplify right side
    33,172.17x = 862,077,559.52
  5. Step 5: Solve for x
    x = 862,077,559.52/33,172.17
  6. Step 6: Final answer
    x = 25,987.98

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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.