Home / 33,129.78-45,718.20-18,792.24

Finding the Fourth Proportional to 33,129.78, 45,718.20 and 18,792.24

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Solution

The fourth proportional to 33,129.78, 45,718.20 and 18,792.24 is: 25,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.78 : 45,718.20 = 18,792.24 : x
  2. Step 2: Convert to fraction form
    33,129.78/45,718.20 = 18,792.24/x
  3. Step 3: Cross multiply
    33,129.78x = 45,718.20 × 18,792.24
  4. Step 4: Simplify right side
    33,129.78x = 859,147,386.77
  5. Step 5: Solve for x
    x = 859,147,386.77/33,129.78
  6. Step 6: Final answer
    x = 25,932.78

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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.